1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
37 #include <scsi/scsi.h>
38 #include <scsi/scsi_device.h>
39 #include <scsi/scsi_host.h>
40 #include <scsi/scsi_transport_fc.h>
45 #include "lpfc_sli4.h"
47 #include "lpfc_disc.h"
48 #include "lpfc_scsi.h"
50 #include "lpfc_logmsg.h"
51 #include "lpfc_crtn.h"
52 #include "lpfc_vport.h"
53 #include "lpfc_version.h"
56 unsigned long _dump_buf_data_order
;
58 unsigned long _dump_buf_dif_order
;
59 spinlock_t _dump_buf_lock
;
61 static void lpfc_get_hba_model_desc(struct lpfc_hba
*, uint8_t *, uint8_t *);
62 static int lpfc_post_rcv_buf(struct lpfc_hba
*);
63 static int lpfc_sli4_queue_verify(struct lpfc_hba
*);
64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba
*);
65 static int lpfc_setup_endian_order(struct lpfc_hba
*);
66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*);
67 static void lpfc_free_sgl_list(struct lpfc_hba
*);
68 static int lpfc_init_sgl_list(struct lpfc_hba
*);
69 static int lpfc_init_active_sgl_array(struct lpfc_hba
*);
70 static void lpfc_free_active_sgl(struct lpfc_hba
*);
71 static int lpfc_hba_down_post_s3(struct lpfc_hba
*phba
);
72 static int lpfc_hba_down_post_s4(struct lpfc_hba
*phba
);
73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*);
74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*);
75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba
*);
77 static struct scsi_transport_template
*lpfc_transport_template
= NULL
;
78 static struct scsi_transport_template
*lpfc_vport_transport_template
= NULL
;
79 static DEFINE_IDR(lpfc_hba_index
);
82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
83 * @phba: pointer to lpfc hba data structure.
85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
86 * mailbox command. It retrieves the revision information from the HBA and
87 * collects the Vital Product Data (VPD) about the HBA for preparing the
88 * configuration of the HBA.
92 * -ERESTART - requests the SLI layer to reset the HBA and try again.
93 * Any other value - indicates an error.
96 lpfc_config_port_prep(struct lpfc_hba
*phba
)
98 lpfc_vpd_t
*vp
= &phba
->vpd
;
102 char *lpfc_vpd_data
= NULL
;
104 static char licensed
[56] =
105 "key unlock for use with gnu public licensed code only\0";
106 static int init_key
= 1;
108 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
110 phba
->link_state
= LPFC_HBA_ERROR
;
115 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
117 if (lpfc_is_LC_HBA(phba
->pcidev
->device
)) {
119 uint32_t *ptext
= (uint32_t *) licensed
;
121 for (i
= 0; i
< 56; i
+= sizeof (uint32_t), ptext
++)
122 *ptext
= cpu_to_be32(*ptext
);
126 lpfc_read_nv(phba
, pmb
);
127 memset((char*)mb
->un
.varRDnvp
.rsvd3
, 0,
128 sizeof (mb
->un
.varRDnvp
.rsvd3
));
129 memcpy((char*)mb
->un
.varRDnvp
.rsvd3
, licensed
,
132 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
134 if (rc
!= MBX_SUCCESS
) {
135 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
136 "0324 Config Port initialization "
137 "error, mbxCmd x%x READ_NVPARM, "
139 mb
->mbxCommand
, mb
->mbxStatus
);
140 mempool_free(pmb
, phba
->mbox_mem_pool
);
143 memcpy(phba
->wwnn
, (char *)mb
->un
.varRDnvp
.nodename
,
145 memcpy(phba
->wwpn
, (char *)mb
->un
.varRDnvp
.portname
,
149 phba
->sli3_options
= 0x0;
151 /* Setup and issue mailbox READ REV command */
152 lpfc_read_rev(phba
, pmb
);
153 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
154 if (rc
!= MBX_SUCCESS
) {
155 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
156 "0439 Adapter failed to init, mbxCmd x%x "
157 "READ_REV, mbxStatus x%x\n",
158 mb
->mbxCommand
, mb
->mbxStatus
);
159 mempool_free( pmb
, phba
->mbox_mem_pool
);
165 * The value of rr must be 1 since the driver set the cv field to 1.
166 * This setting requires the FW to set all revision fields.
168 if (mb
->un
.varRdRev
.rr
== 0) {
170 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
171 "0440 Adapter failed to init, READ_REV has "
172 "missing revision information.\n");
173 mempool_free(pmb
, phba
->mbox_mem_pool
);
177 if (phba
->sli_rev
== 3 && !mb
->un
.varRdRev
.v3rsp
) {
178 mempool_free(pmb
, phba
->mbox_mem_pool
);
182 /* Save information as VPD data */
184 memcpy(&vp
->sli3Feat
, &mb
->un
.varRdRev
.sli3Feat
, sizeof(uint32_t));
185 vp
->rev
.sli1FwRev
= mb
->un
.varRdRev
.sli1FwRev
;
186 memcpy(vp
->rev
.sli1FwName
, (char*) mb
->un
.varRdRev
.sli1FwName
, 16);
187 vp
->rev
.sli2FwRev
= mb
->un
.varRdRev
.sli2FwRev
;
188 memcpy(vp
->rev
.sli2FwName
, (char *) mb
->un
.varRdRev
.sli2FwName
, 16);
189 vp
->rev
.biuRev
= mb
->un
.varRdRev
.biuRev
;
190 vp
->rev
.smRev
= mb
->un
.varRdRev
.smRev
;
191 vp
->rev
.smFwRev
= mb
->un
.varRdRev
.un
.smFwRev
;
192 vp
->rev
.endecRev
= mb
->un
.varRdRev
.endecRev
;
193 vp
->rev
.fcphHigh
= mb
->un
.varRdRev
.fcphHigh
;
194 vp
->rev
.fcphLow
= mb
->un
.varRdRev
.fcphLow
;
195 vp
->rev
.feaLevelHigh
= mb
->un
.varRdRev
.feaLevelHigh
;
196 vp
->rev
.feaLevelLow
= mb
->un
.varRdRev
.feaLevelLow
;
197 vp
->rev
.postKernRev
= mb
->un
.varRdRev
.postKernRev
;
198 vp
->rev
.opFwRev
= mb
->un
.varRdRev
.opFwRev
;
200 /* If the sli feature level is less then 9, we must
201 * tear down all RPIs and VPIs on link down if NPIV
204 if (vp
->rev
.feaLevelHigh
< 9)
205 phba
->sli3_options
|= LPFC_SLI3_VPORT_TEARDOWN
;
207 if (lpfc_is_LC_HBA(phba
->pcidev
->device
))
208 memcpy(phba
->RandomData
, (char *)&mb
->un
.varWords
[24],
209 sizeof (phba
->RandomData
));
211 /* Get adapter VPD information */
212 lpfc_vpd_data
= kmalloc(DMP_VPD_SIZE
, GFP_KERNEL
);
216 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_VPD
);
217 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
219 if (rc
!= MBX_SUCCESS
) {
220 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
221 "0441 VPD not present on adapter, "
222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
223 mb
->mbxCommand
, mb
->mbxStatus
);
224 mb
->un
.varDmp
.word_cnt
= 0;
226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
229 if (mb
->un
.varDmp
.word_cnt
== 0)
231 if (mb
->un
.varDmp
.word_cnt
> DMP_VPD_SIZE
- offset
)
232 mb
->un
.varDmp
.word_cnt
= DMP_VPD_SIZE
- offset
;
233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
234 lpfc_vpd_data
+ offset
,
235 mb
->un
.varDmp
.word_cnt
);
236 offset
+= mb
->un
.varDmp
.word_cnt
;
237 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_VPD_SIZE
);
238 lpfc_parse_vpd(phba
, lpfc_vpd_data
, offset
);
240 kfree(lpfc_vpd_data
);
242 mempool_free(pmb
, phba
->mbox_mem_pool
);
247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
257 lpfc_config_async_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
259 if (pmboxq
->u
.mb
.mbxStatus
== MBX_SUCCESS
)
260 phba
->temp_sensor_support
= 1;
262 phba
->temp_sensor_support
= 0;
263 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
281 uint32_t prog_id_word
;
283 /* character array used for decoding dist type. */
284 char dist_char
[] = "nabx";
286 if (pmboxq
->u
.mb
.mbxStatus
!= MBX_SUCCESS
) {
287 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
291 prg
= (struct prog_id
*) &prog_id_word
;
293 /* word 7 contain option rom version */
294 prog_id_word
= pmboxq
->u
.mb
.un
.varWords
[7];
296 /* Decode the Option rom version word to a readable string */
298 dist
= dist_char
[prg
->dist
];
300 if ((prg
->dist
== 3) && (prg
->num
== 0))
301 sprintf(phba
->OptionROMVersion
, "%d.%d%d",
302 prg
->ver
, prg
->rev
, prg
->lev
);
304 sprintf(phba
->OptionROMVersion
, "%d.%d%d%c%d",
305 prg
->ver
, prg
->rev
, prg
->lev
,
307 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
313 * cfg_soft_wwnn, cfg_soft_wwpn
314 * @vport: pointer to lpfc vport data structure.
321 lpfc_update_vport_wwn(struct lpfc_vport
*vport
)
323 /* If the soft name exists then update it using the service params */
324 if (vport
->phba
->cfg_soft_wwnn
)
325 u64_to_wwn(vport
->phba
->cfg_soft_wwnn
,
326 vport
->fc_sparam
.nodeName
.u
.wwn
);
327 if (vport
->phba
->cfg_soft_wwpn
)
328 u64_to_wwn(vport
->phba
->cfg_soft_wwpn
,
329 vport
->fc_sparam
.portName
.u
.wwn
);
332 * If the name is empty or there exists a soft name
333 * then copy the service params name, otherwise use the fc name
335 if (vport
->fc_nodename
.u
.wwn
[0] == 0 || vport
->phba
->cfg_soft_wwnn
)
336 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
337 sizeof(struct lpfc_name
));
339 memcpy(&vport
->fc_sparam
.nodeName
, &vport
->fc_nodename
,
340 sizeof(struct lpfc_name
));
342 if (vport
->fc_portname
.u
.wwn
[0] == 0 || vport
->phba
->cfg_soft_wwpn
)
343 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
344 sizeof(struct lpfc_name
));
346 memcpy(&vport
->fc_sparam
.portName
, &vport
->fc_portname
,
347 sizeof(struct lpfc_name
));
351 * lpfc_config_port_post - Perform lpfc initialization after config port
352 * @phba: pointer to lpfc hba data structure.
354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
355 * command call. It performs all internal resource and state setups on the
356 * port: post IOCB buffers, enable appropriate host interrupt attentions,
357 * ELS ring timers, etc.
361 * Any other value - error.
364 lpfc_config_port_post(struct lpfc_hba
*phba
)
366 struct lpfc_vport
*vport
= phba
->pport
;
367 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
370 struct lpfc_dmabuf
*mp
;
371 struct lpfc_sli
*psli
= &phba
->sli
;
372 uint32_t status
, timeout
;
376 spin_lock_irq(&phba
->hbalock
);
378 * If the Config port completed correctly the HBA is not
379 * over heated any more.
381 if (phba
->over_temp_state
== HBA_OVER_TEMP
)
382 phba
->over_temp_state
= HBA_NORMAL_TEMP
;
383 spin_unlock_irq(&phba
->hbalock
);
385 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
387 phba
->link_state
= LPFC_HBA_ERROR
;
392 /* Get login parameters for NID. */
393 rc
= lpfc_read_sparam(phba
, pmb
, 0);
395 mempool_free(pmb
, phba
->mbox_mem_pool
);
400 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
401 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
402 "0448 Adapter failed init, mbxCmd x%x "
403 "READ_SPARM mbxStatus x%x\n",
404 mb
->mbxCommand
, mb
->mbxStatus
);
405 phba
->link_state
= LPFC_HBA_ERROR
;
406 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
407 mempool_free(pmb
, phba
->mbox_mem_pool
);
408 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
413 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
415 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof (struct serv_parm
));
416 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
418 pmb
->context1
= NULL
;
419 lpfc_update_vport_wwn(vport
);
421 /* Update the fc_host data structures with new wwn. */
422 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
423 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
424 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
426 /* If no serial number in VPD data, use low 6 bytes of WWNN */
427 /* This should be consolidated into parse_vpd ? - mr */
428 if (phba
->SerialNumber
[0] == 0) {
431 outptr
= &vport
->fc_nodename
.u
.s
.IEEE
[0];
432 for (i
= 0; i
< 12; i
++) {
434 j
= ((status
& 0xf0) >> 4);
436 phba
->SerialNumber
[i
] =
437 (char)((uint8_t) 0x30 + (uint8_t) j
);
439 phba
->SerialNumber
[i
] =
440 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
444 phba
->SerialNumber
[i
] =
445 (char)((uint8_t) 0x30 + (uint8_t) j
);
447 phba
->SerialNumber
[i
] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
452 lpfc_read_config(phba
, pmb
);
454 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
455 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
456 "0453 Adapter failed to init, mbxCmd x%x "
457 "READ_CONFIG, mbxStatus x%x\n",
458 mb
->mbxCommand
, mb
->mbxStatus
);
459 phba
->link_state
= LPFC_HBA_ERROR
;
460 mempool_free( pmb
, phba
->mbox_mem_pool
);
464 /* Check if the port is disabled */
465 lpfc_sli_read_link_ste(phba
);
467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
468 if (phba
->cfg_hba_queue_depth
> (mb
->un
.varRdConfig
.max_xri
+1))
469 phba
->cfg_hba_queue_depth
=
470 (mb
->un
.varRdConfig
.max_xri
+ 1) -
471 lpfc_sli4_get_els_iocb_cnt(phba
);
473 phba
->lmt
= mb
->un
.varRdConfig
.lmt
;
475 /* Get the default values for Model Name and Description */
476 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
478 phba
->link_state
= LPFC_LINK_DOWN
;
480 /* Only process IOCBs on ELS ring till hba_state is READY */
481 if (psli
->ring
[psli
->extra_ring
].cmdringaddr
)
482 psli
->ring
[psli
->extra_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
483 if (psli
->ring
[psli
->fcp_ring
].cmdringaddr
)
484 psli
->ring
[psli
->fcp_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
485 if (psli
->ring
[psli
->next_ring
].cmdringaddr
)
486 psli
->ring
[psli
->next_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
488 /* Post receive buffers for desired rings */
489 if (phba
->sli_rev
!= 3)
490 lpfc_post_rcv_buf(phba
);
493 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
495 if (phba
->intr_type
== MSIX
) {
496 rc
= lpfc_config_msi(phba
, pmb
);
498 mempool_free(pmb
, phba
->mbox_mem_pool
);
501 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
502 if (rc
!= MBX_SUCCESS
) {
503 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
504 "0352 Config MSI mailbox command "
505 "failed, mbxCmd x%x, mbxStatus x%x\n",
506 pmb
->u
.mb
.mbxCommand
,
507 pmb
->u
.mb
.mbxStatus
);
508 mempool_free(pmb
, phba
->mbox_mem_pool
);
513 spin_lock_irq(&phba
->hbalock
);
514 /* Initialize ERATT handling flag */
515 phba
->hba_flag
&= ~HBA_ERATT_HANDLED
;
517 /* Enable appropriate host interrupts */
518 if (lpfc_readl(phba
->HCregaddr
, &status
)) {
519 spin_unlock_irq(&phba
->hbalock
);
522 status
|= HC_MBINT_ENA
| HC_ERINT_ENA
| HC_LAINT_ENA
;
523 if (psli
->num_rings
> 0)
524 status
|= HC_R0INT_ENA
;
525 if (psli
->num_rings
> 1)
526 status
|= HC_R1INT_ENA
;
527 if (psli
->num_rings
> 2)
528 status
|= HC_R2INT_ENA
;
529 if (psli
->num_rings
> 3)
530 status
|= HC_R3INT_ENA
;
532 if ((phba
->cfg_poll
& ENABLE_FCP_RING_POLLING
) &&
533 (phba
->cfg_poll
& DISABLE_FCP_RING_INT
))
534 status
&= ~(HC_R0INT_ENA
);
536 writel(status
, phba
->HCregaddr
);
537 readl(phba
->HCregaddr
); /* flush */
538 spin_unlock_irq(&phba
->hbalock
);
540 /* Set up ring-0 (ELS) timer */
541 timeout
= phba
->fc_ratov
* 2;
542 mod_timer(&vport
->els_tmofunc
, jiffies
+ HZ
* timeout
);
543 /* Set up heart beat (HB) timer */
544 mod_timer(&phba
->hb_tmofunc
, jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
545 phba
->hb_outstanding
= 0;
546 phba
->last_completion_time
= jiffies
;
547 /* Set up error attention (ERATT) polling timer */
548 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
550 if (phba
->hba_flag
& LINK_DISABLED
) {
551 lpfc_printf_log(phba
,
553 "2598 Adapter Link is disabled.\n");
554 lpfc_down_link(phba
, pmb
);
555 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
556 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
557 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
558 lpfc_printf_log(phba
,
560 "2599 Adapter failed to issue DOWN_LINK"
561 " mbox command rc 0x%x\n", rc
);
563 mempool_free(pmb
, phba
->mbox_mem_pool
);
566 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
567 mempool_free(pmb
, phba
->mbox_mem_pool
);
568 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
572 /* MBOX buffer will be freed in mbox compl */
573 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
575 phba
->link_state
= LPFC_HBA_ERROR
;
579 lpfc_config_async(phba
, pmb
, LPFC_ELS_RING
);
580 pmb
->mbox_cmpl
= lpfc_config_async_cmpl
;
581 pmb
->vport
= phba
->pport
;
582 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
584 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
585 lpfc_printf_log(phba
,
588 "0456 Adapter failed to issue "
589 "ASYNCEVT_ENABLE mbox status x%x\n",
591 mempool_free(pmb
, phba
->mbox_mem_pool
);
594 /* Get Option rom version */
595 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
597 phba
->link_state
= LPFC_HBA_ERROR
;
601 lpfc_dump_wakeup_param(phba
, pmb
);
602 pmb
->mbox_cmpl
= lpfc_dump_wakeup_param_cmpl
;
603 pmb
->vport
= phba
->pport
;
604 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
606 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
607 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
, "0435 Adapter failed "
608 "to get Option ROM version status x%x\n", rc
);
609 mempool_free(pmb
, phba
->mbox_mem_pool
);
616 * lpfc_hba_init_link - Initialize the FC link
617 * @phba: pointer to lpfc hba data structure.
618 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
620 * This routine will issue the INIT_LINK mailbox command call.
621 * It is available to other drivers through the lpfc_hba data
622 * structure for use as a delayed link up mechanism with the
623 * module parameter lpfc_suppress_link_up.
627 * Any other value - error
630 lpfc_hba_init_link(struct lpfc_hba
*phba
, uint32_t flag
)
632 return lpfc_hba_init_link_fc_topology(phba
, phba
->cfg_topology
, flag
);
636 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
637 * @phba: pointer to lpfc hba data structure.
638 * @fc_topology: desired fc topology.
639 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
641 * This routine will issue the INIT_LINK mailbox command call.
642 * It is available to other drivers through the lpfc_hba data
643 * structure for use as a delayed link up mechanism with the
644 * module parameter lpfc_suppress_link_up.
648 * Any other value - error
651 lpfc_hba_init_link_fc_topology(struct lpfc_hba
*phba
, uint32_t fc_topology
,
654 struct lpfc_vport
*vport
= phba
->pport
;
659 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
661 phba
->link_state
= LPFC_HBA_ERROR
;
667 if ((phba
->cfg_link_speed
> LPFC_USER_LINK_SPEED_MAX
) ||
668 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_1G
) &&
669 !(phba
->lmt
& LMT_1Gb
)) ||
670 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_2G
) &&
671 !(phba
->lmt
& LMT_2Gb
)) ||
672 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_4G
) &&
673 !(phba
->lmt
& LMT_4Gb
)) ||
674 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_8G
) &&
675 !(phba
->lmt
& LMT_8Gb
)) ||
676 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_10G
) &&
677 !(phba
->lmt
& LMT_10Gb
)) ||
678 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_16G
) &&
679 !(phba
->lmt
& LMT_16Gb
))) {
680 /* Reset link speed to auto */
681 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
682 "1302 Invalid speed for this board:%d "
683 "Reset link speed to auto.\n",
684 phba
->cfg_link_speed
);
685 phba
->cfg_link_speed
= LPFC_USER_LINK_SPEED_AUTO
;
687 lpfc_init_link(phba
, pmb
, fc_topology
, phba
->cfg_link_speed
);
688 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
689 if (phba
->sli_rev
< LPFC_SLI_REV4
)
690 lpfc_set_loopback_flag(phba
);
691 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
692 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
693 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
694 "0498 Adapter failed to init, mbxCmd x%x "
695 "INIT_LINK, mbxStatus x%x\n",
696 mb
->mbxCommand
, mb
->mbxStatus
);
697 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
698 /* Clear all interrupt enable conditions */
699 writel(0, phba
->HCregaddr
);
700 readl(phba
->HCregaddr
); /* flush */
701 /* Clear all pending interrupts */
702 writel(0xffffffff, phba
->HAregaddr
);
703 readl(phba
->HAregaddr
); /* flush */
705 phba
->link_state
= LPFC_HBA_ERROR
;
706 if (rc
!= MBX_BUSY
|| flag
== MBX_POLL
)
707 mempool_free(pmb
, phba
->mbox_mem_pool
);
710 phba
->cfg_suppress_link_up
= LPFC_INITIALIZE_LINK
;
711 if (flag
== MBX_POLL
)
712 mempool_free(pmb
, phba
->mbox_mem_pool
);
718 * lpfc_hba_down_link - this routine downs the FC link
719 * @phba: pointer to lpfc hba data structure.
720 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
722 * This routine will issue the DOWN_LINK mailbox command call.
723 * It is available to other drivers through the lpfc_hba data
724 * structure for use to stop the link.
728 * Any other value - error
731 lpfc_hba_down_link(struct lpfc_hba
*phba
, uint32_t flag
)
736 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
738 phba
->link_state
= LPFC_HBA_ERROR
;
742 lpfc_printf_log(phba
,
744 "0491 Adapter Link is disabled.\n");
745 lpfc_down_link(phba
, pmb
);
746 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
747 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
748 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
749 lpfc_printf_log(phba
,
751 "2522 Adapter failed to issue DOWN_LINK"
752 " mbox command rc 0x%x\n", rc
);
754 mempool_free(pmb
, phba
->mbox_mem_pool
);
757 if (flag
== MBX_POLL
)
758 mempool_free(pmb
, phba
->mbox_mem_pool
);
764 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
765 * @phba: pointer to lpfc HBA data structure.
767 * This routine will do LPFC uninitialization before the HBA is reset when
768 * bringing down the SLI Layer.
772 * Any other value - error.
775 lpfc_hba_down_prep(struct lpfc_hba
*phba
)
777 struct lpfc_vport
**vports
;
780 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
781 /* Disable interrupts */
782 writel(0, phba
->HCregaddr
);
783 readl(phba
->HCregaddr
); /* flush */
786 if (phba
->pport
->load_flag
& FC_UNLOADING
)
787 lpfc_cleanup_discovery_resources(phba
->pport
);
789 vports
= lpfc_create_vport_work_array(phba
);
791 for (i
= 0; i
<= phba
->max_vports
&&
792 vports
[i
] != NULL
; i
++)
793 lpfc_cleanup_discovery_resources(vports
[i
]);
794 lpfc_destroy_vport_work_array(phba
, vports
);
800 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
801 * @phba: pointer to lpfc HBA data structure.
803 * This routine will do uninitialization after the HBA is reset when bring
804 * down the SLI Layer.
808 * Any other value - error.
811 lpfc_hba_down_post_s3(struct lpfc_hba
*phba
)
813 struct lpfc_sli
*psli
= &phba
->sli
;
814 struct lpfc_sli_ring
*pring
;
815 struct lpfc_dmabuf
*mp
, *next_mp
;
816 LIST_HEAD(completions
);
819 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)
820 lpfc_sli_hbqbuf_free_all(phba
);
822 /* Cleanup preposted buffers on the ELS ring */
823 pring
= &psli
->ring
[LPFC_ELS_RING
];
824 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
826 pring
->postbufq_cnt
--;
827 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
832 spin_lock_irq(&phba
->hbalock
);
833 for (i
= 0; i
< psli
->num_rings
; i
++) {
834 pring
= &psli
->ring
[i
];
836 /* At this point in time the HBA is either reset or DOA. Either
837 * way, nothing should be on txcmplq as it will NEVER complete.
839 list_splice_init(&pring
->txcmplq
, &completions
);
840 pring
->txcmplq_cnt
= 0;
841 spin_unlock_irq(&phba
->hbalock
);
843 /* Cancel all the IOCBs from the completions list */
844 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
847 lpfc_sli_abort_iocb_ring(phba
, pring
);
848 spin_lock_irq(&phba
->hbalock
);
850 spin_unlock_irq(&phba
->hbalock
);
856 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
857 * @phba: pointer to lpfc HBA data structure.
859 * This routine will do uninitialization after the HBA is reset when bring
860 * down the SLI Layer.
864 * Any other value - error.
867 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
869 struct lpfc_scsi_buf
*psb
, *psb_next
;
872 unsigned long iflag
= 0;
873 struct lpfc_sglq
*sglq_entry
= NULL
;
875 ret
= lpfc_hba_down_post_s3(phba
);
878 /* At this point in time the HBA is either reset or DOA. Either
879 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
880 * on the lpfc_sgl_list so that it can either be freed if the
881 * driver is unloading or reposted if the driver is restarting
884 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
886 /* abts_sgl_list_lock required because worker thread uses this
889 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
890 list_for_each_entry(sglq_entry
,
891 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
892 sglq_entry
->state
= SGL_FREED
;
894 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
895 &phba
->sli4_hba
.lpfc_sgl_list
);
896 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
897 /* abts_scsi_buf_list_lock required because worker thread uses this
900 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
901 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
903 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
904 spin_unlock_irq(&phba
->hbalock
);
906 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
908 psb
->status
= IOSTAT_SUCCESS
;
910 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
911 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
912 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
917 * lpfc_hba_down_post - Wrapper func for hba down post routine
918 * @phba: pointer to lpfc HBA data structure.
920 * This routine wraps the actual SLI3 or SLI4 routine for performing
921 * uninitialization after the HBA is reset when bring down the SLI Layer.
925 * Any other value - error.
928 lpfc_hba_down_post(struct lpfc_hba
*phba
)
930 return (*phba
->lpfc_hba_down_post
)(phba
);
934 * lpfc_hb_timeout - The HBA-timer timeout handler
935 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
937 * This is the HBA-timer timeout handler registered to the lpfc driver. When
938 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
939 * work-port-events bitmap and the worker thread is notified. This timeout
940 * event will be used by the worker thread to invoke the actual timeout
941 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
942 * be performed in the timeout handler and the HBA timeout event bit shall
943 * be cleared by the worker thread after it has taken the event bitmap out.
946 lpfc_hb_timeout(unsigned long ptr
)
948 struct lpfc_hba
*phba
;
952 phba
= (struct lpfc_hba
*)ptr
;
954 /* Check for heart beat timeout conditions */
955 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
956 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
958 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
959 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
961 /* Tell the worker thread there is work to do */
963 lpfc_worker_wake_up(phba
);
968 * lpfc_rrq_timeout - The RRQ-timer timeout handler
969 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
971 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
972 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
973 * work-port-events bitmap and the worker thread is notified. This timeout
974 * event will be used by the worker thread to invoke the actual timeout
975 * handler routine, lpfc_rrq_handler. Any periodical operations will
976 * be performed in the timeout handler and the RRQ timeout event bit shall
977 * be cleared by the worker thread after it has taken the event bitmap out.
980 lpfc_rrq_timeout(unsigned long ptr
)
982 struct lpfc_hba
*phba
;
985 phba
= (struct lpfc_hba
*)ptr
;
986 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
987 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
988 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
989 lpfc_worker_wake_up(phba
);
993 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
994 * @phba: pointer to lpfc hba data structure.
995 * @pmboxq: pointer to the driver internal queue element for mailbox command.
997 * This is the callback function to the lpfc heart-beat mailbox command.
998 * If configured, the lpfc driver issues the heart-beat mailbox command to
999 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1000 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1001 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1002 * heart-beat outstanding state. Once the mailbox command comes back and
1003 * no error conditions detected, the heart-beat mailbox command timer is
1004 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1005 * state is cleared for the next heart-beat. If the timer expired with the
1006 * heart-beat outstanding state set, the driver will put the HBA offline.
1009 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
1011 unsigned long drvr_flag
;
1013 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
1014 phba
->hb_outstanding
= 0;
1015 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
1017 /* Check and reset heart-beat timer is necessary */
1018 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
1019 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
1020 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
1021 !(phba
->pport
->load_flag
& FC_UNLOADING
))
1022 mod_timer(&phba
->hb_tmofunc
,
1023 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1028 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1029 * @phba: pointer to lpfc hba data structure.
1031 * This is the actual HBA-timer timeout handler to be invoked by the worker
1032 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1033 * handler performs any periodic operations needed for the device. If such
1034 * periodic event has already been attended to either in the interrupt handler
1035 * or by processing slow-ring or fast-ring events within the HBA-timer
1036 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1037 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1038 * is configured and there is no heart-beat mailbox command outstanding, a
1039 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1040 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1044 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
1046 struct lpfc_vport
**vports
;
1047 LPFC_MBOXQ_t
*pmboxq
;
1048 struct lpfc_dmabuf
*buf_ptr
;
1050 struct lpfc_sli
*psli
= &phba
->sli
;
1051 LIST_HEAD(completions
);
1053 vports
= lpfc_create_vport_work_array(phba
);
1055 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1056 lpfc_rcv_seq_check_edtov(vports
[i
]);
1057 lpfc_destroy_vport_work_array(phba
, vports
);
1059 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
1060 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
1061 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
1064 spin_lock_irq(&phba
->pport
->work_port_lock
);
1066 if (time_after(phba
->last_completion_time
+ LPFC_HB_MBOX_INTERVAL
* HZ
,
1068 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1069 if (!phba
->hb_outstanding
)
1070 mod_timer(&phba
->hb_tmofunc
,
1071 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1073 mod_timer(&phba
->hb_tmofunc
,
1074 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1077 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1079 if (phba
->elsbuf_cnt
&&
1080 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1081 spin_lock_irq(&phba
->hbalock
);
1082 list_splice_init(&phba
->elsbuf
, &completions
);
1083 phba
->elsbuf_cnt
= 0;
1084 phba
->elsbuf_prev_cnt
= 0;
1085 spin_unlock_irq(&phba
->hbalock
);
1087 while (!list_empty(&completions
)) {
1088 list_remove_head(&completions
, buf_ptr
,
1089 struct lpfc_dmabuf
, list
);
1090 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1094 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1096 /* If there is no heart beat outstanding, issue a heartbeat command */
1097 if (phba
->cfg_enable_hba_heartbeat
) {
1098 if (!phba
->hb_outstanding
) {
1099 if ((!(psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
)) &&
1100 (list_empty(&psli
->mboxq
))) {
1101 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,
1104 mod_timer(&phba
->hb_tmofunc
,
1106 HZ
* LPFC_HB_MBOX_INTERVAL
);
1110 lpfc_heart_beat(phba
, pmboxq
);
1111 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1112 pmboxq
->vport
= phba
->pport
;
1113 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
,
1116 if (retval
!= MBX_BUSY
&&
1117 retval
!= MBX_SUCCESS
) {
1118 mempool_free(pmboxq
,
1119 phba
->mbox_mem_pool
);
1120 mod_timer(&phba
->hb_tmofunc
,
1122 HZ
* LPFC_HB_MBOX_INTERVAL
);
1125 phba
->skipped_hb
= 0;
1126 phba
->hb_outstanding
= 1;
1127 } else if (time_before_eq(phba
->last_completion_time
,
1128 phba
->skipped_hb
)) {
1129 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1130 "2857 Last completion time not "
1131 " updated in %d ms\n",
1132 jiffies_to_msecs(jiffies
1133 - phba
->last_completion_time
));
1135 phba
->skipped_hb
= jiffies
;
1137 mod_timer(&phba
->hb_tmofunc
,
1138 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1142 * If heart beat timeout called with hb_outstanding set
1143 * we need to give the hb mailbox cmd a chance to
1146 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1147 "0459 Adapter heartbeat still out"
1148 "standing:last compl time was %d ms.\n",
1149 jiffies_to_msecs(jiffies
1150 - phba
->last_completion_time
));
1151 mod_timer(&phba
->hb_tmofunc
,
1152 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1158 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1159 * @phba: pointer to lpfc hba data structure.
1161 * This routine is called to bring the HBA offline when HBA hardware error
1162 * other than Port Error 6 has been detected.
1165 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1167 struct lpfc_sli
*psli
= &phba
->sli
;
1169 spin_lock_irq(&phba
->hbalock
);
1170 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1171 spin_unlock_irq(&phba
->hbalock
);
1172 lpfc_offline_prep(phba
);
1175 lpfc_reset_barrier(phba
);
1176 spin_lock_irq(&phba
->hbalock
);
1177 lpfc_sli_brdreset(phba
);
1178 spin_unlock_irq(&phba
->hbalock
);
1179 lpfc_hba_down_post(phba
);
1180 lpfc_sli_brdready(phba
, HS_MBRDY
);
1181 lpfc_unblock_mgmt_io(phba
);
1182 phba
->link_state
= LPFC_HBA_ERROR
;
1187 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1188 * @phba: pointer to lpfc hba data structure.
1190 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1191 * other than Port Error 6 has been detected.
1194 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1196 lpfc_offline_prep(phba
);
1198 lpfc_sli4_brdreset(phba
);
1199 lpfc_hba_down_post(phba
);
1200 lpfc_sli4_post_status_check(phba
);
1201 lpfc_unblock_mgmt_io(phba
);
1202 phba
->link_state
= LPFC_HBA_ERROR
;
1206 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1207 * @phba: pointer to lpfc hba data structure.
1209 * This routine is invoked to handle the deferred HBA hardware error
1210 * conditions. This type of error is indicated by HBA by setting ER1
1211 * and another ER bit in the host status register. The driver will
1212 * wait until the ER1 bit clears before handling the error condition.
1215 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1217 uint32_t old_host_status
= phba
->work_hs
;
1218 struct lpfc_sli_ring
*pring
;
1219 struct lpfc_sli
*psli
= &phba
->sli
;
1221 /* If the pci channel is offline, ignore possible errors,
1222 * since we cannot communicate with the pci card anyway.
1224 if (pci_channel_offline(phba
->pcidev
)) {
1225 spin_lock_irq(&phba
->hbalock
);
1226 phba
->hba_flag
&= ~DEFER_ERATT
;
1227 spin_unlock_irq(&phba
->hbalock
);
1231 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1232 "0479 Deferred Adapter Hardware Error "
1233 "Data: x%x x%x x%x\n",
1235 phba
->work_status
[0], phba
->work_status
[1]);
1237 spin_lock_irq(&phba
->hbalock
);
1238 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1239 spin_unlock_irq(&phba
->hbalock
);
1243 * Firmware stops when it triggred erratt. That could cause the I/Os
1244 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1245 * SCSI layer retry it after re-establishing link.
1247 pring
= &psli
->ring
[psli
->fcp_ring
];
1248 lpfc_sli_abort_iocb_ring(phba
, pring
);
1251 * There was a firmware error. Take the hba offline and then
1252 * attempt to restart it.
1254 lpfc_offline_prep(phba
);
1257 /* Wait for the ER1 bit to clear.*/
1258 while (phba
->work_hs
& HS_FFER1
) {
1260 if (lpfc_readl(phba
->HSregaddr
, &phba
->work_hs
)) {
1261 phba
->work_hs
= UNPLUG_ERR
;
1264 /* If driver is unloading let the worker thread continue */
1265 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1272 * This is to ptrotect against a race condition in which
1273 * first write to the host attention register clear the
1274 * host status register.
1276 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1277 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1279 spin_lock_irq(&phba
->hbalock
);
1280 phba
->hba_flag
&= ~DEFER_ERATT
;
1281 spin_unlock_irq(&phba
->hbalock
);
1282 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1283 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1287 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1289 struct lpfc_board_event_header board_event
;
1290 struct Scsi_Host
*shost
;
1292 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1293 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1294 shost
= lpfc_shost_from_vport(phba
->pport
);
1295 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1296 sizeof(board_event
),
1297 (char *) &board_event
,
1302 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1303 * @phba: pointer to lpfc hba data structure.
1305 * This routine is invoked to handle the following HBA hardware error
1307 * 1 - HBA error attention interrupt
1308 * 2 - DMA ring index out of range
1309 * 3 - Mailbox command came back as unknown
1312 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1314 struct lpfc_vport
*vport
= phba
->pport
;
1315 struct lpfc_sli
*psli
= &phba
->sli
;
1316 struct lpfc_sli_ring
*pring
;
1317 uint32_t event_data
;
1318 unsigned long temperature
;
1319 struct temp_event temp_event_data
;
1320 struct Scsi_Host
*shost
;
1322 /* If the pci channel is offline, ignore possible errors,
1323 * since we cannot communicate with the pci card anyway.
1325 if (pci_channel_offline(phba
->pcidev
)) {
1326 spin_lock_irq(&phba
->hbalock
);
1327 phba
->hba_flag
&= ~DEFER_ERATT
;
1328 spin_unlock_irq(&phba
->hbalock
);
1332 /* If resets are disabled then leave the HBA alone and return */
1333 if (!phba
->cfg_enable_hba_reset
)
1336 /* Send an internal error event to mgmt application */
1337 lpfc_board_errevt_to_mgmt(phba
);
1339 if (phba
->hba_flag
& DEFER_ERATT
)
1340 lpfc_handle_deferred_eratt(phba
);
1342 if ((phba
->work_hs
& HS_FFER6
) || (phba
->work_hs
& HS_FFER8
)) {
1343 if (phba
->work_hs
& HS_FFER6
)
1344 /* Re-establishing Link */
1345 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1346 "1301 Re-establishing Link "
1347 "Data: x%x x%x x%x\n",
1348 phba
->work_hs
, phba
->work_status
[0],
1349 phba
->work_status
[1]);
1350 if (phba
->work_hs
& HS_FFER8
)
1351 /* Device Zeroization */
1352 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1353 "2861 Host Authentication device "
1354 "zeroization Data:x%x x%x x%x\n",
1355 phba
->work_hs
, phba
->work_status
[0],
1356 phba
->work_status
[1]);
1358 spin_lock_irq(&phba
->hbalock
);
1359 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1360 spin_unlock_irq(&phba
->hbalock
);
1363 * Firmware stops when it triggled erratt with HS_FFER6.
1364 * That could cause the I/Os dropped by the firmware.
1365 * Error iocb (I/O) on txcmplq and let the SCSI layer
1366 * retry it after re-establishing link.
1368 pring
= &psli
->ring
[psli
->fcp_ring
];
1369 lpfc_sli_abort_iocb_ring(phba
, pring
);
1372 * There was a firmware error. Take the hba offline and then
1373 * attempt to restart it.
1375 lpfc_offline_prep(phba
);
1377 lpfc_sli_brdrestart(phba
);
1378 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1379 lpfc_unblock_mgmt_io(phba
);
1382 lpfc_unblock_mgmt_io(phba
);
1383 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1384 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1385 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1386 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1387 temp_event_data
.data
= (uint32_t)temperature
;
1389 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1390 "0406 Adapter maximum temperature exceeded "
1391 "(%ld), taking this port offline "
1392 "Data: x%x x%x x%x\n",
1393 temperature
, phba
->work_hs
,
1394 phba
->work_status
[0], phba
->work_status
[1]);
1396 shost
= lpfc_shost_from_vport(phba
->pport
);
1397 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1398 sizeof(temp_event_data
),
1399 (char *) &temp_event_data
,
1400 SCSI_NL_VID_TYPE_PCI
1401 | PCI_VENDOR_ID_EMULEX
);
1403 spin_lock_irq(&phba
->hbalock
);
1404 phba
->over_temp_state
= HBA_OVER_TEMP
;
1405 spin_unlock_irq(&phba
->hbalock
);
1406 lpfc_offline_eratt(phba
);
1409 /* The if clause above forces this code path when the status
1410 * failure is a value other than FFER6. Do not call the offline
1411 * twice. This is the adapter hardware error path.
1413 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1414 "0457 Adapter Hardware Error "
1415 "Data: x%x x%x x%x\n",
1417 phba
->work_status
[0], phba
->work_status
[1]);
1419 event_data
= FC_REG_DUMP_EVENT
;
1420 shost
= lpfc_shost_from_vport(vport
);
1421 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1422 sizeof(event_data
), (char *) &event_data
,
1423 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1425 lpfc_offline_eratt(phba
);
1431 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1432 * @phba: pointer to lpfc hba data structure.
1434 * This routine is invoked to handle the SLI4 HBA hardware error attention
1438 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1440 struct lpfc_vport
*vport
= phba
->pport
;
1441 uint32_t event_data
;
1442 struct Scsi_Host
*shost
;
1444 struct lpfc_register portstat_reg
= {0};
1445 uint32_t reg_err1
, reg_err2
;
1446 uint32_t uerrlo_reg
, uemasklo_reg
;
1447 uint32_t pci_rd_rc1
, pci_rd_rc2
;
1450 /* If the pci channel is offline, ignore possible errors, since
1451 * we cannot communicate with the pci card anyway.
1453 if (pci_channel_offline(phba
->pcidev
))
1455 /* If resets are disabled then leave the HBA alone and return */
1456 if (!phba
->cfg_enable_hba_reset
)
1459 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1461 case LPFC_SLI_INTF_IF_TYPE_0
:
1462 pci_rd_rc1
= lpfc_readl(
1463 phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
,
1465 pci_rd_rc2
= lpfc_readl(
1466 phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
,
1468 /* consider PCI bus read error as pci_channel_offline */
1469 if (pci_rd_rc1
== -EIO
&& pci_rd_rc2
== -EIO
)
1471 lpfc_sli4_offline_eratt(phba
);
1473 case LPFC_SLI_INTF_IF_TYPE_2
:
1474 pci_rd_rc1
= lpfc_readl(
1475 phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
1476 &portstat_reg
.word0
);
1477 /* consider PCI bus read error as pci_channel_offline */
1478 if (pci_rd_rc1
== -EIO
) {
1479 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1480 "3151 PCI bus read access failure: x%x\n",
1481 readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
));
1484 reg_err1
= readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
1485 reg_err2
= readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
1486 if (bf_get(lpfc_sliport_status_oti
, &portstat_reg
)) {
1487 /* TODO: Register for Overtemp async events. */
1488 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1489 "2889 Port Overtemperature event, "
1490 "taking port offline\n");
1491 spin_lock_irq(&phba
->hbalock
);
1492 phba
->over_temp_state
= HBA_OVER_TEMP
;
1493 spin_unlock_irq(&phba
->hbalock
);
1494 lpfc_sli4_offline_eratt(phba
);
1497 if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1498 reg_err2
== SLIPORT_ERR2_REG_FW_RESTART
)
1499 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1500 "3143 Port Down: Firmware Restarted\n");
1501 else if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1502 reg_err2
== SLIPORT_ERR2_REG_FORCED_DUMP
)
1503 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1504 "3144 Port Down: Debug Dump\n");
1505 else if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1506 reg_err2
== SLIPORT_ERR2_REG_FUNC_PROVISON
)
1507 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1508 "3145 Port Down: Provisioning\n");
1510 * On error status condition, driver need to wait for port
1511 * ready before performing reset.
1513 rc
= lpfc_sli4_pdev_status_reg_wait(phba
);
1515 /* need reset: attempt for port recovery */
1516 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1517 "2887 Reset Needed: Attempting Port "
1519 lpfc_offline_prep(phba
);
1521 lpfc_sli_brdrestart(phba
);
1522 if (lpfc_online(phba
) == 0) {
1523 lpfc_unblock_mgmt_io(phba
);
1524 /* don't report event on forced debug dump */
1525 if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1526 reg_err2
== SLIPORT_ERR2_REG_FORCED_DUMP
)
1531 /* fall through for not able to recover */
1533 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1534 "3152 Unrecoverable error, bring the port "
1536 lpfc_sli4_offline_eratt(phba
);
1538 case LPFC_SLI_INTF_IF_TYPE_1
:
1542 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1543 "3123 Report dump event to upper layer\n");
1544 /* Send an internal error event to mgmt application */
1545 lpfc_board_errevt_to_mgmt(phba
);
1547 event_data
= FC_REG_DUMP_EVENT
;
1548 shost
= lpfc_shost_from_vport(vport
);
1549 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1550 sizeof(event_data
), (char *) &event_data
,
1551 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1555 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1556 * @phba: pointer to lpfc HBA data structure.
1558 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1559 * routine from the API jump table function pointer from the lpfc_hba struct.
1563 * Any other value - error.
1566 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1568 (*phba
->lpfc_handle_eratt
)(phba
);
1572 * lpfc_handle_latt - The HBA link event handler
1573 * @phba: pointer to lpfc hba data structure.
1575 * This routine is invoked from the worker thread to handle a HBA host
1576 * attention link event.
1579 lpfc_handle_latt(struct lpfc_hba
*phba
)
1581 struct lpfc_vport
*vport
= phba
->pport
;
1582 struct lpfc_sli
*psli
= &phba
->sli
;
1584 volatile uint32_t control
;
1585 struct lpfc_dmabuf
*mp
;
1588 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1591 goto lpfc_handle_latt_err_exit
;
1594 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1597 goto lpfc_handle_latt_free_pmb
;
1600 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1603 goto lpfc_handle_latt_free_mp
;
1606 /* Cleanup any outstanding ELS commands */
1607 lpfc_els_flush_all_cmd(phba
);
1609 psli
->slistat
.link_event
++;
1610 lpfc_read_topology(phba
, pmb
, mp
);
1611 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
1613 /* Block ELS IOCBs until we have processed this mbox command */
1614 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1615 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1616 if (rc
== MBX_NOT_FINISHED
) {
1618 goto lpfc_handle_latt_free_mbuf
;
1621 /* Clear Link Attention in HA REG */
1622 spin_lock_irq(&phba
->hbalock
);
1623 writel(HA_LATT
, phba
->HAregaddr
);
1624 readl(phba
->HAregaddr
); /* flush */
1625 spin_unlock_irq(&phba
->hbalock
);
1629 lpfc_handle_latt_free_mbuf
:
1630 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1631 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1632 lpfc_handle_latt_free_mp
:
1634 lpfc_handle_latt_free_pmb
:
1635 mempool_free(pmb
, phba
->mbox_mem_pool
);
1636 lpfc_handle_latt_err_exit
:
1637 /* Enable Link attention interrupts */
1638 spin_lock_irq(&phba
->hbalock
);
1639 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1640 control
= readl(phba
->HCregaddr
);
1641 control
|= HC_LAINT_ENA
;
1642 writel(control
, phba
->HCregaddr
);
1643 readl(phba
->HCregaddr
); /* flush */
1645 /* Clear Link Attention in HA REG */
1646 writel(HA_LATT
, phba
->HAregaddr
);
1647 readl(phba
->HAregaddr
); /* flush */
1648 spin_unlock_irq(&phba
->hbalock
);
1649 lpfc_linkdown(phba
);
1650 phba
->link_state
= LPFC_HBA_ERROR
;
1652 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1653 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1659 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1660 * @phba: pointer to lpfc hba data structure.
1661 * @vpd: pointer to the vital product data.
1662 * @len: length of the vital product data in bytes.
1664 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1665 * an array of characters. In this routine, the ModelName, ProgramType, and
1666 * ModelDesc, etc. fields of the phba data structure will be populated.
1669 * 0 - pointer to the VPD passed in is NULL
1673 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1675 uint8_t lenlo
, lenhi
;
1685 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1686 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1687 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1689 while (!finished
&& (index
< (len
- 4))) {
1690 switch (vpd
[index
]) {
1698 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1707 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1708 if (Length
> len
- index
)
1709 Length
= len
- index
;
1710 while (Length
> 0) {
1711 /* Look for Serial Number */
1712 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1719 phba
->SerialNumber
[j
++] = vpd
[index
++];
1723 phba
->SerialNumber
[j
] = 0;
1726 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1727 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1734 phba
->ModelDesc
[j
++] = vpd
[index
++];
1738 phba
->ModelDesc
[j
] = 0;
1741 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1742 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1749 phba
->ModelName
[j
++] = vpd
[index
++];
1753 phba
->ModelName
[j
] = 0;
1756 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1757 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1764 phba
->ProgramType
[j
++] = vpd
[index
++];
1768 phba
->ProgramType
[j
] = 0;
1771 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1772 phba
->vpd_flag
|= VPD_PORT
;
1779 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1780 (phba
->sli4_hba
.pport_name_sta
==
1781 LPFC_SLI4_PPNAME_GET
)) {
1785 phba
->Port
[j
++] = vpd
[index
++];
1789 if ((phba
->sli_rev
!= LPFC_SLI_REV4
) ||
1790 (phba
->sli4_hba
.pport_name_sta
==
1791 LPFC_SLI4_PPNAME_NON
))
1818 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1819 * @phba: pointer to lpfc hba data structure.
1820 * @mdp: pointer to the data structure to hold the derived model name.
1821 * @descp: pointer to the data structure to hold the derived description.
1823 * This routine retrieves HBA's description based on its registered PCI device
1824 * ID. The @descp passed into this function points to an array of 256 chars. It
1825 * shall be returned with the model name, maximum speed, and the host bus type.
1826 * The @mdp passed into this function points to an array of 80 chars. When the
1827 * function returns, the @mdp will be filled with the model name.
1830 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1833 uint16_t dev_id
= phba
->pcidev
->device
;
1836 int oneConnect
= 0; /* default is not a oneConnect */
1841 } m
= {"<Unknown>", "", ""};
1843 if (mdp
&& mdp
[0] != '\0'
1844 && descp
&& descp
[0] != '\0')
1847 if (phba
->lmt
& LMT_16Gb
)
1849 else if (phba
->lmt
& LMT_10Gb
)
1851 else if (phba
->lmt
& LMT_8Gb
)
1853 else if (phba
->lmt
& LMT_4Gb
)
1855 else if (phba
->lmt
& LMT_2Gb
)
1863 case PCI_DEVICE_ID_FIREFLY
:
1864 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1866 case PCI_DEVICE_ID_SUPERFLY
:
1867 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1868 m
= (typeof(m
)){"LP7000", "PCI",
1869 "Fibre Channel Adapter"};
1871 m
= (typeof(m
)){"LP7000E", "PCI",
1872 "Fibre Channel Adapter"};
1874 case PCI_DEVICE_ID_DRAGONFLY
:
1875 m
= (typeof(m
)){"LP8000", "PCI",
1876 "Fibre Channel Adapter"};
1878 case PCI_DEVICE_ID_CENTAUR
:
1879 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1880 m
= (typeof(m
)){"LP9002", "PCI",
1881 "Fibre Channel Adapter"};
1883 m
= (typeof(m
)){"LP9000", "PCI",
1884 "Fibre Channel Adapter"};
1886 case PCI_DEVICE_ID_RFLY
:
1887 m
= (typeof(m
)){"LP952", "PCI",
1888 "Fibre Channel Adapter"};
1890 case PCI_DEVICE_ID_PEGASUS
:
1891 m
= (typeof(m
)){"LP9802", "PCI-X",
1892 "Fibre Channel Adapter"};
1894 case PCI_DEVICE_ID_THOR
:
1895 m
= (typeof(m
)){"LP10000", "PCI-X",
1896 "Fibre Channel Adapter"};
1898 case PCI_DEVICE_ID_VIPER
:
1899 m
= (typeof(m
)){"LPX1000", "PCI-X",
1900 "Fibre Channel Adapter"};
1902 case PCI_DEVICE_ID_PFLY
:
1903 m
= (typeof(m
)){"LP982", "PCI-X",
1904 "Fibre Channel Adapter"};
1906 case PCI_DEVICE_ID_TFLY
:
1907 m
= (typeof(m
)){"LP1050", "PCI-X",
1908 "Fibre Channel Adapter"};
1910 case PCI_DEVICE_ID_HELIOS
:
1911 m
= (typeof(m
)){"LP11000", "PCI-X2",
1912 "Fibre Channel Adapter"};
1914 case PCI_DEVICE_ID_HELIOS_SCSP
:
1915 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1916 "Fibre Channel Adapter"};
1918 case PCI_DEVICE_ID_HELIOS_DCSP
:
1919 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1920 "Fibre Channel Adapter"};
1922 case PCI_DEVICE_ID_NEPTUNE
:
1923 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1925 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1926 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1928 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1929 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1931 case PCI_DEVICE_ID_BMID
:
1932 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1934 case PCI_DEVICE_ID_BSMB
:
1935 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1937 case PCI_DEVICE_ID_ZEPHYR
:
1938 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1940 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1941 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1943 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1944 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1947 case PCI_DEVICE_ID_ZMID
:
1948 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1950 case PCI_DEVICE_ID_ZSMB
:
1951 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1953 case PCI_DEVICE_ID_LP101
:
1954 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1956 case PCI_DEVICE_ID_LP10000S
:
1957 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1959 case PCI_DEVICE_ID_LP11000S
:
1960 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1962 case PCI_DEVICE_ID_LPE11000S
:
1963 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1965 case PCI_DEVICE_ID_SAT
:
1966 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1968 case PCI_DEVICE_ID_SAT_MID
:
1969 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1971 case PCI_DEVICE_ID_SAT_SMB
:
1972 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1974 case PCI_DEVICE_ID_SAT_DCSP
:
1975 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1977 case PCI_DEVICE_ID_SAT_SCSP
:
1978 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1980 case PCI_DEVICE_ID_SAT_S
:
1981 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1983 case PCI_DEVICE_ID_HORNET
:
1984 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1987 case PCI_DEVICE_ID_PROTEUS_VF
:
1988 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1989 "Fibre Channel Adapter"};
1991 case PCI_DEVICE_ID_PROTEUS_PF
:
1992 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1993 "Fibre Channel Adapter"};
1995 case PCI_DEVICE_ID_PROTEUS_S
:
1996 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1997 "Fibre Channel Adapter"};
1999 case PCI_DEVICE_ID_TIGERSHARK
:
2001 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
2003 case PCI_DEVICE_ID_TOMCAT
:
2005 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
2007 case PCI_DEVICE_ID_FALCON
:
2008 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
2009 "EmulexSecure Fibre"};
2011 case PCI_DEVICE_ID_BALIUS
:
2012 m
= (typeof(m
)){"LPVe12002", "PCIe Shared I/O",
2013 "Fibre Channel Adapter"};
2015 case PCI_DEVICE_ID_LANCER_FC
:
2016 case PCI_DEVICE_ID_LANCER_FC_VF
:
2017 m
= (typeof(m
)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2019 case PCI_DEVICE_ID_LANCER_FCOE
:
2020 case PCI_DEVICE_ID_LANCER_FCOE_VF
:
2022 m
= (typeof(m
)){"OCe15100", "PCIe", "FCoE"};
2025 m
= (typeof(m
)){"Unknown", "", ""};
2029 if (mdp
&& mdp
[0] == '\0')
2030 snprintf(mdp
, 79,"%s", m
.name
);
2032 * oneConnect hba requires special processing, they are all initiators
2033 * and we put the port number on the end
2035 if (descp
&& descp
[0] == '\0') {
2037 snprintf(descp
, 255,
2038 "Emulex OneConnect %s, %s Initiator, Port %s",
2042 snprintf(descp
, 255,
2043 "Emulex %s %d%s %s %s",
2044 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
2050 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2051 * @phba: pointer to lpfc hba data structure.
2052 * @pring: pointer to a IOCB ring.
2053 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2055 * This routine posts a given number of IOCBs with the associated DMA buffer
2056 * descriptors specified by the cnt argument to the given IOCB ring.
2059 * The number of IOCBs NOT able to be posted to the IOCB ring.
2062 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
2065 struct lpfc_iocbq
*iocb
;
2066 struct lpfc_dmabuf
*mp1
, *mp2
;
2068 cnt
+= pring
->missbufcnt
;
2070 /* While there are buffers to post */
2072 /* Allocate buffer for command iocb */
2073 iocb
= lpfc_sli_get_iocbq(phba
);
2075 pring
->missbufcnt
= cnt
;
2080 /* 2 buffers can be posted per command */
2081 /* Allocate buffer to post */
2082 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
2084 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
2085 if (!mp1
|| !mp1
->virt
) {
2087 lpfc_sli_release_iocbq(phba
, iocb
);
2088 pring
->missbufcnt
= cnt
;
2092 INIT_LIST_HEAD(&mp1
->list
);
2093 /* Allocate buffer to post */
2095 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
2097 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
2099 if (!mp2
|| !mp2
->virt
) {
2101 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
2103 lpfc_sli_release_iocbq(phba
, iocb
);
2104 pring
->missbufcnt
= cnt
;
2108 INIT_LIST_HEAD(&mp2
->list
);
2113 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
2114 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
2115 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
2116 icmd
->ulpBdeCount
= 1;
2119 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
2120 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
2121 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
2123 icmd
->ulpBdeCount
= 2;
2126 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
2129 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
2131 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
2135 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
2139 lpfc_sli_release_iocbq(phba
, iocb
);
2140 pring
->missbufcnt
= cnt
;
2143 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
2145 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
2147 pring
->missbufcnt
= 0;
2152 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2153 * @phba: pointer to lpfc hba data structure.
2155 * This routine posts initial receive IOCB buffers to the ELS ring. The
2156 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2160 * 0 - success (currently always success)
2163 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
2165 struct lpfc_sli
*psli
= &phba
->sli
;
2167 /* Ring 0, ELS / CT buffers */
2168 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
2169 /* Ring 2 - FCP no buffers needed */
2174 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2177 * lpfc_sha_init - Set up initial array of hash table entries
2178 * @HashResultPointer: pointer to an array as hash table.
2180 * This routine sets up the initial values to the array of hash table entries
2184 lpfc_sha_init(uint32_t * HashResultPointer
)
2186 HashResultPointer
[0] = 0x67452301;
2187 HashResultPointer
[1] = 0xEFCDAB89;
2188 HashResultPointer
[2] = 0x98BADCFE;
2189 HashResultPointer
[3] = 0x10325476;
2190 HashResultPointer
[4] = 0xC3D2E1F0;
2194 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2195 * @HashResultPointer: pointer to an initial/result hash table.
2196 * @HashWorkingPointer: pointer to an working hash table.
2198 * This routine iterates an initial hash table pointed by @HashResultPointer
2199 * with the values from the working hash table pointeed by @HashWorkingPointer.
2200 * The results are putting back to the initial hash table, returned through
2201 * the @HashResultPointer as the result hash table.
2204 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2208 uint32_t A
, B
, C
, D
, E
;
2211 HashWorkingPointer
[t
] =
2213 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2215 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2216 } while (++t
<= 79);
2218 A
= HashResultPointer
[0];
2219 B
= HashResultPointer
[1];
2220 C
= HashResultPointer
[2];
2221 D
= HashResultPointer
[3];
2222 E
= HashResultPointer
[4];
2226 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2227 } else if (t
< 40) {
2228 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2229 } else if (t
< 60) {
2230 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2232 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2234 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2240 } while (++t
<= 79);
2242 HashResultPointer
[0] += A
;
2243 HashResultPointer
[1] += B
;
2244 HashResultPointer
[2] += C
;
2245 HashResultPointer
[3] += D
;
2246 HashResultPointer
[4] += E
;
2251 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2252 * @RandomChallenge: pointer to the entry of host challenge random number array.
2253 * @HashWorking: pointer to the entry of the working hash array.
2255 * This routine calculates the working hash array referred by @HashWorking
2256 * from the challenge random numbers associated with the host, referred by
2257 * @RandomChallenge. The result is put into the entry of the working hash
2258 * array and returned by reference through @HashWorking.
2261 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2263 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2267 * lpfc_hba_init - Perform special handling for LC HBA initialization
2268 * @phba: pointer to lpfc hba data structure.
2269 * @hbainit: pointer to an array of unsigned 32-bit integers.
2271 * This routine performs the special handling for LC HBA initialization.
2274 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2277 uint32_t *HashWorking
;
2278 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2280 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2284 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2285 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2287 for (t
= 0; t
< 7; t
++)
2288 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2290 lpfc_sha_init(hbainit
);
2291 lpfc_sha_iterate(hbainit
, HashWorking
);
2296 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2297 * @vport: pointer to a virtual N_Port data structure.
2299 * This routine performs the necessary cleanups before deleting the @vport.
2300 * It invokes the discovery state machine to perform necessary state
2301 * transitions and to release the ndlps associated with the @vport. Note,
2302 * the physical port is treated as @vport 0.
2305 lpfc_cleanup(struct lpfc_vport
*vport
)
2307 struct lpfc_hba
*phba
= vport
->phba
;
2308 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2311 if (phba
->link_state
> LPFC_LINK_DOWN
)
2312 lpfc_port_link_failure(vport
);
2314 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2315 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2316 ndlp
= lpfc_enable_node(vport
, ndlp
,
2317 NLP_STE_UNUSED_NODE
);
2320 spin_lock_irq(&phba
->ndlp_lock
);
2321 NLP_SET_FREE_REQ(ndlp
);
2322 spin_unlock_irq(&phba
->ndlp_lock
);
2323 /* Trigger the release of the ndlp memory */
2327 spin_lock_irq(&phba
->ndlp_lock
);
2328 if (NLP_CHK_FREE_REQ(ndlp
)) {
2329 /* The ndlp should not be in memory free mode already */
2330 spin_unlock_irq(&phba
->ndlp_lock
);
2333 /* Indicate request for freeing ndlp memory */
2334 NLP_SET_FREE_REQ(ndlp
);
2335 spin_unlock_irq(&phba
->ndlp_lock
);
2337 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2338 ndlp
->nlp_DID
== Fabric_DID
) {
2339 /* Just free up ndlp with Fabric_DID for vports */
2344 /* take care of nodes in unused state before the state
2345 * machine taking action.
2347 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
2352 if (ndlp
->nlp_type
& NLP_FABRIC
)
2353 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2354 NLP_EVT_DEVICE_RECOVERY
);
2356 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2360 /* At this point, ALL ndlp's should be gone
2361 * because of the previous NLP_EVT_DEVICE_RM.
2362 * Lets wait for this to happen, if needed.
2364 while (!list_empty(&vport
->fc_nodes
)) {
2366 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2367 "0233 Nodelist not empty\n");
2368 list_for_each_entry_safe(ndlp
, next_ndlp
,
2369 &vport
->fc_nodes
, nlp_listp
) {
2370 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2372 "0282 did:x%x ndlp:x%p "
2373 "usgmap:x%x refcnt:%d\n",
2374 ndlp
->nlp_DID
, (void *)ndlp
,
2377 &ndlp
->kref
.refcount
));
2382 /* Wait for any activity on ndlps to settle */
2385 lpfc_cleanup_vports_rrqs(vport
, NULL
);
2389 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2390 * @vport: pointer to a virtual N_Port data structure.
2392 * This routine stops all the timers associated with a @vport. This function
2393 * is invoked before disabling or deleting a @vport. Note that the physical
2394 * port is treated as @vport 0.
2397 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2399 del_timer_sync(&vport
->els_tmofunc
);
2400 del_timer_sync(&vport
->fc_fdmitmo
);
2401 del_timer_sync(&vport
->delayed_disc_tmo
);
2402 lpfc_can_disctmo(vport
);
2407 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2408 * @phba: pointer to lpfc hba data structure.
2410 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2411 * caller of this routine should already hold the host lock.
2414 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2416 /* Clear pending FCF rediscovery wait flag */
2417 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2419 /* Now, try to stop the timer */
2420 del_timer(&phba
->fcf
.redisc_wait
);
2424 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2425 * @phba: pointer to lpfc hba data structure.
2427 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2428 * checks whether the FCF rediscovery wait timer is pending with the host
2429 * lock held before proceeding with disabling the timer and clearing the
2430 * wait timer pendig flag.
2433 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2435 spin_lock_irq(&phba
->hbalock
);
2436 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2437 /* FCF rediscovery timer already fired or stopped */
2438 spin_unlock_irq(&phba
->hbalock
);
2441 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2442 /* Clear failover in progress flags */
2443 phba
->fcf
.fcf_flag
&= ~(FCF_DEAD_DISC
| FCF_ACVL_DISC
);
2444 spin_unlock_irq(&phba
->hbalock
);
2448 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2449 * @phba: pointer to lpfc hba data structure.
2451 * This routine stops all the timers associated with a HBA. This function is
2452 * invoked before either putting a HBA offline or unloading the driver.
2455 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2457 lpfc_stop_vport_timers(phba
->pport
);
2458 del_timer_sync(&phba
->sli
.mbox_tmo
);
2459 del_timer_sync(&phba
->fabric_block_timer
);
2460 del_timer_sync(&phba
->eratt_poll
);
2461 del_timer_sync(&phba
->hb_tmofunc
);
2462 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2463 del_timer_sync(&phba
->rrq_tmr
);
2464 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
2466 phba
->hb_outstanding
= 0;
2468 switch (phba
->pci_dev_grp
) {
2469 case LPFC_PCI_DEV_LP
:
2470 /* Stop any LightPulse device specific driver timers */
2471 del_timer_sync(&phba
->fcp_poll_timer
);
2473 case LPFC_PCI_DEV_OC
:
2474 /* Stop any OneConnect device sepcific driver timers */
2475 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2478 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2479 "0297 Invalid device group (x%x)\n",
2487 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2488 * @phba: pointer to lpfc hba data structure.
2490 * This routine marks a HBA's management interface as blocked. Once the HBA's
2491 * management interface is marked as blocked, all the user space access to
2492 * the HBA, whether they are from sysfs interface or libdfc interface will
2493 * all be blocked. The HBA is set to block the management interface when the
2494 * driver prepares the HBA interface for online or offline.
2497 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2499 unsigned long iflag
;
2500 uint8_t actcmd
= MBX_HEARTBEAT
;
2501 unsigned long timeout
;
2503 timeout
= msecs_to_jiffies(LPFC_MBOX_TMO
* 1000) + jiffies
;
2504 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2505 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2506 if (phba
->sli
.mbox_active
) {
2507 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
2508 /* Determine how long we might wait for the active mailbox
2509 * command to be gracefully completed by firmware.
2511 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
2512 phba
->sli
.mbox_active
) * 1000) + jiffies
;
2514 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2516 /* Wait for the outstnading mailbox command to complete */
2517 while (phba
->sli
.mbox_active
) {
2518 /* Check active mailbox complete status every 2ms */
2520 if (time_after(jiffies
, timeout
)) {
2521 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2522 "2813 Mgmt IO is Blocked %x "
2523 "- mbox cmd %x still active\n",
2524 phba
->sli
.sli_flag
, actcmd
);
2531 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2532 * @phba: pointer to lpfc hba data structure.
2534 * Allocate RPIs for all active remote nodes. This is needed whenever
2535 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2536 * is to fixup the temporary rpi assignments.
2539 lpfc_sli4_node_prep(struct lpfc_hba
*phba
)
2541 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2542 struct lpfc_vport
**vports
;
2545 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
2548 vports
= lpfc_create_vport_work_array(phba
);
2549 if (vports
!= NULL
) {
2550 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2551 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2554 list_for_each_entry_safe(ndlp
, next_ndlp
,
2555 &vports
[i
]->fc_nodes
,
2557 if (NLP_CHK_NODE_ACT(ndlp
))
2559 lpfc_sli4_alloc_rpi(phba
);
2563 lpfc_destroy_vport_work_array(phba
, vports
);
2567 * lpfc_online - Initialize and bring a HBA online
2568 * @phba: pointer to lpfc hba data structure.
2570 * This routine initializes the HBA and brings a HBA online. During this
2571 * process, the management interface is blocked to prevent user space access
2572 * to the HBA interfering with the driver initialization.
2579 lpfc_online(struct lpfc_hba
*phba
)
2581 struct lpfc_vport
*vport
;
2582 struct lpfc_vport
**vports
;
2587 vport
= phba
->pport
;
2589 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2592 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2593 "0458 Bring Adapter online\n");
2595 lpfc_block_mgmt_io(phba
);
2597 if (!lpfc_sli_queue_setup(phba
)) {
2598 lpfc_unblock_mgmt_io(phba
);
2602 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2603 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2604 lpfc_unblock_mgmt_io(phba
);
2608 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2609 lpfc_unblock_mgmt_io(phba
);
2614 vports
= lpfc_create_vport_work_array(phba
);
2616 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2617 struct Scsi_Host
*shost
;
2618 shost
= lpfc_shost_from_vport(vports
[i
]);
2619 spin_lock_irq(shost
->host_lock
);
2620 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2621 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2622 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2623 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2624 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2625 spin_unlock_irq(shost
->host_lock
);
2627 lpfc_destroy_vport_work_array(phba
, vports
);
2629 lpfc_unblock_mgmt_io(phba
);
2634 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2635 * @phba: pointer to lpfc hba data structure.
2637 * This routine marks a HBA's management interface as not blocked. Once the
2638 * HBA's management interface is marked as not blocked, all the user space
2639 * access to the HBA, whether they are from sysfs interface or libdfc
2640 * interface will be allowed. The HBA is set to block the management interface
2641 * when the driver prepares the HBA interface for online or offline and then
2642 * set to unblock the management interface afterwards.
2645 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2647 unsigned long iflag
;
2649 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2650 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2651 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2655 * lpfc_offline_prep - Prepare a HBA to be brought offline
2656 * @phba: pointer to lpfc hba data structure.
2658 * This routine is invoked to prepare a HBA to be brought offline. It performs
2659 * unregistration login to all the nodes on all vports and flushes the mailbox
2660 * queue to make it ready to be brought offline.
2663 lpfc_offline_prep(struct lpfc_hba
* phba
)
2665 struct lpfc_vport
*vport
= phba
->pport
;
2666 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2667 struct lpfc_vport
**vports
;
2668 struct Scsi_Host
*shost
;
2671 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2674 lpfc_block_mgmt_io(phba
);
2676 lpfc_linkdown(phba
);
2678 /* Issue an unreg_login to all nodes on all vports */
2679 vports
= lpfc_create_vport_work_array(phba
);
2680 if (vports
!= NULL
) {
2681 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2682 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2684 shost
= lpfc_shost_from_vport(vports
[i
]);
2685 spin_lock_irq(shost
->host_lock
);
2686 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2687 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2688 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2689 spin_unlock_irq(shost
->host_lock
);
2691 shost
= lpfc_shost_from_vport(vports
[i
]);
2692 list_for_each_entry_safe(ndlp
, next_ndlp
,
2693 &vports
[i
]->fc_nodes
,
2695 if (!NLP_CHK_NODE_ACT(ndlp
))
2697 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2699 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2700 lpfc_disc_state_machine(vports
[i
], ndlp
,
2701 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2702 lpfc_disc_state_machine(vports
[i
], ndlp
,
2703 NULL
, NLP_EVT_DEVICE_RM
);
2705 spin_lock_irq(shost
->host_lock
);
2706 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2709 * Whenever an SLI4 port goes offline, free the
2710 * RPI. A new RPI when the adapter port comes
2713 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2714 lpfc_sli4_free_rpi(phba
, ndlp
->nlp_rpi
);
2716 spin_unlock_irq(shost
->host_lock
);
2717 lpfc_unreg_rpi(vports
[i
], ndlp
);
2721 lpfc_destroy_vport_work_array(phba
, vports
);
2723 lpfc_sli_mbox_sys_shutdown(phba
);
2727 * lpfc_offline - Bring a HBA offline
2728 * @phba: pointer to lpfc hba data structure.
2730 * This routine actually brings a HBA offline. It stops all the timers
2731 * associated with the HBA, brings down the SLI layer, and eventually
2732 * marks the HBA as in offline state for the upper layer protocol.
2735 lpfc_offline(struct lpfc_hba
*phba
)
2737 struct Scsi_Host
*shost
;
2738 struct lpfc_vport
**vports
;
2741 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2744 /* stop port and all timers associated with this hba */
2745 lpfc_stop_port(phba
);
2746 vports
= lpfc_create_vport_work_array(phba
);
2748 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2749 lpfc_stop_vport_timers(vports
[i
]);
2750 lpfc_destroy_vport_work_array(phba
, vports
);
2751 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2752 "0460 Bring Adapter offline\n");
2753 /* Bring down the SLI Layer and cleanup. The HBA is offline
2755 lpfc_sli_hba_down(phba
);
2756 spin_lock_irq(&phba
->hbalock
);
2758 spin_unlock_irq(&phba
->hbalock
);
2759 vports
= lpfc_create_vport_work_array(phba
);
2761 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2762 shost
= lpfc_shost_from_vport(vports
[i
]);
2763 spin_lock_irq(shost
->host_lock
);
2764 vports
[i
]->work_port_events
= 0;
2765 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2766 spin_unlock_irq(shost
->host_lock
);
2768 lpfc_destroy_vport_work_array(phba
, vports
);
2772 * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated.
2773 * @phba: pointer to lpfc hba data structure.
2775 * This routine goes through all the scsi buffers in the system and updates the
2776 * Physical XRIs assigned to the SCSI buffer because these may change after any
2780 * 0 - successful (for now, it always returns 0)
2783 lpfc_scsi_buf_update(struct lpfc_hba
*phba
)
2785 struct lpfc_scsi_buf
*sb
, *sb_next
;
2787 spin_lock_irq(&phba
->hbalock
);
2788 spin_lock(&phba
->scsi_buf_list_lock
);
2789 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
)
2790 sb
->cur_iocbq
.sli4_xritag
=
2791 phba
->sli4_hba
.xri_ids
[sb
->cur_iocbq
.sli4_lxritag
];
2792 spin_unlock(&phba
->scsi_buf_list_lock
);
2793 spin_unlock_irq(&phba
->hbalock
);
2798 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2799 * @phba: pointer to lpfc hba data structure.
2801 * This routine is to free all the SCSI buffers and IOCBs from the driver
2802 * list back to kernel. It is called from lpfc_pci_remove_one to free
2803 * the internal resources before the device is removed from the system.
2806 * 0 - successful (for now, it always returns 0)
2809 lpfc_scsi_free(struct lpfc_hba
*phba
)
2811 struct lpfc_scsi_buf
*sb
, *sb_next
;
2812 struct lpfc_iocbq
*io
, *io_next
;
2814 spin_lock_irq(&phba
->hbalock
);
2815 /* Release all the lpfc_scsi_bufs maintained by this host. */
2816 spin_lock(&phba
->scsi_buf_list_lock
);
2817 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2818 list_del(&sb
->list
);
2819 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2822 phba
->total_scsi_bufs
--;
2824 spin_unlock(&phba
->scsi_buf_list_lock
);
2826 /* Release all the lpfc_iocbq entries maintained by this host. */
2827 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2828 list_del(&io
->list
);
2830 phba
->total_iocbq_bufs
--;
2833 spin_unlock_irq(&phba
->hbalock
);
2838 * lpfc_create_port - Create an FC port
2839 * @phba: pointer to lpfc hba data structure.
2840 * @instance: a unique integer ID to this FC port.
2841 * @dev: pointer to the device data structure.
2843 * This routine creates a FC port for the upper layer protocol. The FC port
2844 * can be created on top of either a physical port or a virtual port provided
2845 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2846 * and associates the FC port created before adding the shost into the SCSI
2850 * @vport - pointer to the virtual N_Port data structure.
2851 * NULL - port create failed.
2854 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2856 struct lpfc_vport
*vport
;
2857 struct Scsi_Host
*shost
;
2860 if (dev
!= &phba
->pcidev
->dev
)
2861 shost
= scsi_host_alloc(&lpfc_vport_template
,
2862 sizeof(struct lpfc_vport
));
2864 shost
= scsi_host_alloc(&lpfc_template
,
2865 sizeof(struct lpfc_vport
));
2869 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2871 vport
->load_flag
|= FC_LOADING
;
2872 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2873 vport
->fc_rscn_flush
= 0;
2875 lpfc_get_vport_cfgparam(vport
);
2876 shost
->unique_id
= instance
;
2877 shost
->max_id
= LPFC_MAX_TARGET
;
2878 shost
->max_lun
= vport
->cfg_max_luns
;
2879 shost
->this_id
= -1;
2880 shost
->max_cmd_len
= 16;
2881 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2882 shost
->dma_boundary
=
2883 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
2884 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2888 * Set initial can_queue value since 0 is no longer supported and
2889 * scsi_add_host will fail. This will be adjusted later based on the
2890 * max xri value determined in hba setup.
2892 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2893 if (dev
!= &phba
->pcidev
->dev
) {
2894 shost
->transportt
= lpfc_vport_transport_template
;
2895 vport
->port_type
= LPFC_NPIV_PORT
;
2897 shost
->transportt
= lpfc_transport_template
;
2898 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2901 /* Initialize all internally managed lists. */
2902 INIT_LIST_HEAD(&vport
->fc_nodes
);
2903 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2904 spin_lock_init(&vport
->work_port_lock
);
2906 init_timer(&vport
->fc_disctmo
);
2907 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2908 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2910 init_timer(&vport
->fc_fdmitmo
);
2911 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2912 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2914 init_timer(&vport
->els_tmofunc
);
2915 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2916 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2918 init_timer(&vport
->delayed_disc_tmo
);
2919 vport
->delayed_disc_tmo
.function
= lpfc_delayed_disc_tmo
;
2920 vport
->delayed_disc_tmo
.data
= (unsigned long)vport
;
2922 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2926 spin_lock_irq(&phba
->hbalock
);
2927 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2928 spin_unlock_irq(&phba
->hbalock
);
2932 scsi_host_put(shost
);
2938 * destroy_port - destroy an FC port
2939 * @vport: pointer to an lpfc virtual N_Port data structure.
2941 * This routine destroys a FC port from the upper layer protocol. All the
2942 * resources associated with the port are released.
2945 destroy_port(struct lpfc_vport
*vport
)
2947 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2948 struct lpfc_hba
*phba
= vport
->phba
;
2950 lpfc_debugfs_terminate(vport
);
2951 fc_remove_host(shost
);
2952 scsi_remove_host(shost
);
2954 spin_lock_irq(&phba
->hbalock
);
2955 list_del_init(&vport
->listentry
);
2956 spin_unlock_irq(&phba
->hbalock
);
2958 lpfc_cleanup(vport
);
2963 * lpfc_get_instance - Get a unique integer ID
2965 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2966 * uses the kernel idr facility to perform the task.
2969 * instance - a unique integer ID allocated as the new instance.
2970 * -1 - lpfc get instance failed.
2973 lpfc_get_instance(void)
2977 /* Assign an unused number */
2978 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2980 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2986 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2987 * @shost: pointer to SCSI host data structure.
2988 * @time: elapsed time of the scan in jiffies.
2990 * This routine is called by the SCSI layer with a SCSI host to determine
2991 * whether the scan host is finished.
2993 * Note: there is no scan_start function as adapter initialization will have
2994 * asynchronously kicked off the link initialization.
2997 * 0 - SCSI host scan is not over yet.
2998 * 1 - SCSI host scan is over.
3000 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
3002 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
3003 struct lpfc_hba
*phba
= vport
->phba
;
3006 spin_lock_irq(shost
->host_lock
);
3008 if (vport
->load_flag
& FC_UNLOADING
) {
3012 if (time
>= 30 * HZ
) {
3013 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3014 "0461 Scanning longer than 30 "
3015 "seconds. Continuing initialization\n");
3019 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
3020 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3021 "0465 Link down longer than 15 "
3022 "seconds. Continuing initialization\n");
3027 if (vport
->port_state
!= LPFC_VPORT_READY
)
3029 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
3031 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
3033 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
3039 spin_unlock_irq(shost
->host_lock
);
3044 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3045 * @shost: pointer to SCSI host data structure.
3047 * This routine initializes a given SCSI host attributes on a FC port. The
3048 * SCSI host can be either on top of a physical port or a virtual port.
3050 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
3052 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
3053 struct lpfc_hba
*phba
= vport
->phba
;
3055 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3058 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
3059 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
3060 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
3062 memset(fc_host_supported_fc4s(shost
), 0,
3063 sizeof(fc_host_supported_fc4s(shost
)));
3064 fc_host_supported_fc4s(shost
)[2] = 1;
3065 fc_host_supported_fc4s(shost
)[7] = 1;
3067 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
3068 sizeof fc_host_symbolic_name(shost
));
3070 fc_host_supported_speeds(shost
) = 0;
3071 if (phba
->lmt
& LMT_16Gb
)
3072 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_16GBIT
;
3073 if (phba
->lmt
& LMT_10Gb
)
3074 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
3075 if (phba
->lmt
& LMT_8Gb
)
3076 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
3077 if (phba
->lmt
& LMT_4Gb
)
3078 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
3079 if (phba
->lmt
& LMT_2Gb
)
3080 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
3081 if (phba
->lmt
& LMT_1Gb
)
3082 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
3084 fc_host_maxframe_size(shost
) =
3085 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
3086 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
3088 fc_host_dev_loss_tmo(shost
) = vport
->cfg_devloss_tmo
;
3090 /* This value is also unchanging */
3091 memset(fc_host_active_fc4s(shost
), 0,
3092 sizeof(fc_host_active_fc4s(shost
)));
3093 fc_host_active_fc4s(shost
)[2] = 1;
3094 fc_host_active_fc4s(shost
)[7] = 1;
3096 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
3097 spin_lock_irq(shost
->host_lock
);
3098 vport
->load_flag
&= ~FC_LOADING
;
3099 spin_unlock_irq(shost
->host_lock
);
3103 * lpfc_stop_port_s3 - Stop SLI3 device port
3104 * @phba: pointer to lpfc hba data structure.
3106 * This routine is invoked to stop an SLI3 device port, it stops the device
3107 * from generating interrupts and stops the device driver's timers for the
3111 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
3113 /* Clear all interrupt enable conditions */
3114 writel(0, phba
->HCregaddr
);
3115 readl(phba
->HCregaddr
); /* flush */
3116 /* Clear all pending interrupts */
3117 writel(0xffffffff, phba
->HAregaddr
);
3118 readl(phba
->HAregaddr
); /* flush */
3120 /* Reset some HBA SLI setup states */
3121 lpfc_stop_hba_timers(phba
);
3122 phba
->pport
->work_port_events
= 0;
3126 * lpfc_stop_port_s4 - Stop SLI4 device port
3127 * @phba: pointer to lpfc hba data structure.
3129 * This routine is invoked to stop an SLI4 device port, it stops the device
3130 * from generating interrupts and stops the device driver's timers for the
3134 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
3136 /* Reset some HBA SLI4 setup states */
3137 lpfc_stop_hba_timers(phba
);
3138 phba
->pport
->work_port_events
= 0;
3139 phba
->sli4_hba
.intr_enable
= 0;
3143 * lpfc_stop_port - Wrapper function for stopping hba port
3144 * @phba: Pointer to HBA context object.
3146 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3147 * the API jump table function pointer from the lpfc_hba struct.
3150 lpfc_stop_port(struct lpfc_hba
*phba
)
3152 phba
->lpfc_stop_port(phba
);
3156 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3157 * @phba: Pointer to hba for which this call is being executed.
3159 * This routine starts the timer waiting for the FCF rediscovery to complete.
3162 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
3164 unsigned long fcf_redisc_wait_tmo
=
3165 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
3166 /* Start fcf rediscovery wait period timer */
3167 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
3168 spin_lock_irq(&phba
->hbalock
);
3169 /* Allow action to new fcf asynchronous event */
3170 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
3171 /* Mark the FCF rediscovery pending state */
3172 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
3173 spin_unlock_irq(&phba
->hbalock
);
3177 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3178 * @ptr: Map to lpfc_hba data structure pointer.
3180 * This routine is invoked when waiting for FCF table rediscover has been
3181 * timed out. If new FCF record(s) has (have) been discovered during the
3182 * wait period, a new FCF event shall be added to the FCOE async event
3183 * list, and then worker thread shall be waked up for processing from the
3184 * worker thread context.
3187 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
3189 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
3191 /* Don't send FCF rediscovery event if timer cancelled */
3192 spin_lock_irq(&phba
->hbalock
);
3193 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
3194 spin_unlock_irq(&phba
->hbalock
);
3197 /* Clear FCF rediscovery timer pending flag */
3198 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
3199 /* FCF rediscovery event to worker thread */
3200 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
3201 spin_unlock_irq(&phba
->hbalock
);
3202 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
3203 "2776 FCF rediscover quiescent timer expired\n");
3204 /* wake up worker thread */
3205 lpfc_worker_wake_up(phba
);
3209 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3210 * @phba: pointer to lpfc hba data structure.
3211 * @acqe_link: pointer to the async link completion queue entry.
3213 * This routine is to parse the SLI4 link-attention link fault code and
3214 * translate it into the base driver's read link attention mailbox command
3217 * Return: Link-attention status in terms of base driver's coding.
3220 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3221 struct lpfc_acqe_link
*acqe_link
)
3223 uint16_t latt_fault
;
3225 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3226 case LPFC_ASYNC_LINK_FAULT_NONE
:
3227 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3228 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3232 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3233 "0398 Invalid link fault code: x%x\n",
3234 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3235 latt_fault
= MBXERR_ERROR
;
3242 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3243 * @phba: pointer to lpfc hba data structure.
3244 * @acqe_link: pointer to the async link completion queue entry.
3246 * This routine is to parse the SLI4 link attention type and translate it
3247 * into the base driver's link attention type coding.
3249 * Return: Link attention type in terms of base driver's coding.
3252 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3253 struct lpfc_acqe_link
*acqe_link
)
3257 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3258 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3259 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3260 att_type
= LPFC_ATT_LINK_DOWN
;
3262 case LPFC_ASYNC_LINK_STATUS_UP
:
3263 /* Ignore physical link up events - wait for logical link up */
3264 att_type
= LPFC_ATT_RESERVED
;
3266 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3267 att_type
= LPFC_ATT_LINK_UP
;
3270 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3271 "0399 Invalid link attention type: x%x\n",
3272 bf_get(lpfc_acqe_link_status
, acqe_link
));
3273 att_type
= LPFC_ATT_RESERVED
;
3280 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3281 * @phba: pointer to lpfc hba data structure.
3282 * @acqe_link: pointer to the async link completion queue entry.
3284 * This routine is to parse the SLI4 link-attention link speed and translate
3285 * it into the base driver's link-attention link speed coding.
3287 * Return: Link-attention link speed in terms of base driver's coding.
3290 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3291 struct lpfc_acqe_link
*acqe_link
)
3295 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3296 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3297 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3298 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3299 link_speed
= LPFC_LINK_SPEED_UNKNOWN
;
3301 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3302 link_speed
= LPFC_LINK_SPEED_1GHZ
;
3304 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3305 link_speed
= LPFC_LINK_SPEED_10GHZ
;
3308 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3309 "0483 Invalid link-attention link speed: x%x\n",
3310 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3311 link_speed
= LPFC_LINK_SPEED_UNKNOWN
;
3318 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3319 * @phba: pointer to lpfc hba data structure.
3320 * @acqe_link: pointer to the async link completion queue entry.
3322 * This routine is to handle the SLI4 asynchronous FCoE link event.
3325 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3326 struct lpfc_acqe_link
*acqe_link
)
3328 struct lpfc_dmabuf
*mp
;
3331 struct lpfc_mbx_read_top
*la
;
3335 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3336 if (att_type
!= LPFC_ATT_LINK_DOWN
&& att_type
!= LPFC_ATT_LINK_UP
)
3338 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3339 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3341 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3342 "0395 The mboxq allocation failed\n");
3345 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3347 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3348 "0396 The lpfc_dmabuf allocation failed\n");
3351 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3353 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3354 "0397 The mbuf allocation failed\n");
3355 goto out_free_dmabuf
;
3358 /* Cleanup any outstanding ELS commands */
3359 lpfc_els_flush_all_cmd(phba
);
3361 /* Block ELS IOCBs until we have done process link event */
3362 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3364 /* Update link event statistics */
3365 phba
->sli
.slistat
.link_event
++;
3367 /* Create lpfc_handle_latt mailbox command from link ACQE */
3368 lpfc_read_topology(phba
, pmb
, mp
);
3369 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
3370 pmb
->vport
= phba
->pport
;
3372 /* Keep the link status for extra SLI4 state machine reference */
3373 phba
->sli4_hba
.link_state
.speed
=
3374 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3375 phba
->sli4_hba
.link_state
.duplex
=
3376 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3377 phba
->sli4_hba
.link_state
.status
=
3378 bf_get(lpfc_acqe_link_status
, acqe_link
);
3379 phba
->sli4_hba
.link_state
.type
=
3380 bf_get(lpfc_acqe_link_type
, acqe_link
);
3381 phba
->sli4_hba
.link_state
.number
=
3382 bf_get(lpfc_acqe_link_number
, acqe_link
);
3383 phba
->sli4_hba
.link_state
.fault
=
3384 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3385 phba
->sli4_hba
.link_state
.logical_speed
=
3386 bf_get(lpfc_acqe_logical_link_speed
, acqe_link
);
3387 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3388 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3389 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3390 "Logical speed:%dMbps Fault:%d\n",
3391 phba
->sli4_hba
.link_state
.speed
,
3392 phba
->sli4_hba
.link_state
.topology
,
3393 phba
->sli4_hba
.link_state
.status
,
3394 phba
->sli4_hba
.link_state
.type
,
3395 phba
->sli4_hba
.link_state
.number
,
3396 phba
->sli4_hba
.link_state
.logical_speed
* 10,
3397 phba
->sli4_hba
.link_state
.fault
);
3399 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3400 * topology info. Note: Optional for non FC-AL ports.
3402 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3403 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3404 if (rc
== MBX_NOT_FINISHED
)
3405 goto out_free_dmabuf
;
3409 * For FCoE Mode: fill in all the topology information we need and call
3410 * the READ_TOPOLOGY completion routine to continue without actually
3411 * sending the READ_TOPOLOGY mailbox command to the port.
3413 /* Parse and translate status field */
3415 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3417 /* Parse and translate link attention fields */
3418 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3419 la
->eventTag
= acqe_link
->event_tag
;
3420 bf_set(lpfc_mbx_read_top_att_type
, la
, att_type
);
3421 bf_set(lpfc_mbx_read_top_link_spd
, la
,
3422 lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
));
3424 /* Fake the the following irrelvant fields */
3425 bf_set(lpfc_mbx_read_top_topology
, la
, LPFC_TOPOLOGY_PT_PT
);
3426 bf_set(lpfc_mbx_read_top_alpa_granted
, la
, 0);
3427 bf_set(lpfc_mbx_read_top_il
, la
, 0);
3428 bf_set(lpfc_mbx_read_top_pb
, la
, 0);
3429 bf_set(lpfc_mbx_read_top_fa
, la
, 0);
3430 bf_set(lpfc_mbx_read_top_mm
, la
, 0);
3432 /* Invoke the lpfc_handle_latt mailbox command callback function */
3433 lpfc_mbx_cmpl_read_topology(phba
, pmb
);
3440 mempool_free(pmb
, phba
->mbox_mem_pool
);
3444 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3445 * @phba: pointer to lpfc hba data structure.
3446 * @acqe_fc: pointer to the async fc completion queue entry.
3448 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3449 * that the event was received and then issue a read_topology mailbox command so
3450 * that the rest of the driver will treat it the same as SLI3.
3453 lpfc_sli4_async_fc_evt(struct lpfc_hba
*phba
, struct lpfc_acqe_fc_la
*acqe_fc
)
3455 struct lpfc_dmabuf
*mp
;
3459 if (bf_get(lpfc_trailer_type
, acqe_fc
) !=
3460 LPFC_FC_LA_EVENT_TYPE_FC_LINK
) {
3461 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3462 "2895 Non FC link Event detected.(%d)\n",
3463 bf_get(lpfc_trailer_type
, acqe_fc
));
3466 /* Keep the link status for extra SLI4 state machine reference */
3467 phba
->sli4_hba
.link_state
.speed
=
3468 bf_get(lpfc_acqe_fc_la_speed
, acqe_fc
);
3469 phba
->sli4_hba
.link_state
.duplex
= LPFC_ASYNC_LINK_DUPLEX_FULL
;
3470 phba
->sli4_hba
.link_state
.topology
=
3471 bf_get(lpfc_acqe_fc_la_topology
, acqe_fc
);
3472 phba
->sli4_hba
.link_state
.status
=
3473 bf_get(lpfc_acqe_fc_la_att_type
, acqe_fc
);
3474 phba
->sli4_hba
.link_state
.type
=
3475 bf_get(lpfc_acqe_fc_la_port_type
, acqe_fc
);
3476 phba
->sli4_hba
.link_state
.number
=
3477 bf_get(lpfc_acqe_fc_la_port_number
, acqe_fc
);
3478 phba
->sli4_hba
.link_state
.fault
=
3479 bf_get(lpfc_acqe_link_fault
, acqe_fc
);
3480 phba
->sli4_hba
.link_state
.logical_speed
=
3481 bf_get(lpfc_acqe_fc_la_llink_spd
, acqe_fc
);
3482 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3483 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3484 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3485 "%dMbps Fault:%d\n",
3486 phba
->sli4_hba
.link_state
.speed
,
3487 phba
->sli4_hba
.link_state
.topology
,
3488 phba
->sli4_hba
.link_state
.status
,
3489 phba
->sli4_hba
.link_state
.type
,
3490 phba
->sli4_hba
.link_state
.number
,
3491 phba
->sli4_hba
.link_state
.logical_speed
* 10,
3492 phba
->sli4_hba
.link_state
.fault
);
3493 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3495 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3496 "2897 The mboxq allocation failed\n");
3499 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3501 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3502 "2898 The lpfc_dmabuf allocation failed\n");
3505 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3507 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3508 "2899 The mbuf allocation failed\n");
3509 goto out_free_dmabuf
;
3512 /* Cleanup any outstanding ELS commands */
3513 lpfc_els_flush_all_cmd(phba
);
3515 /* Block ELS IOCBs until we have done process link event */
3516 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3518 /* Update link event statistics */
3519 phba
->sli
.slistat
.link_event
++;
3521 /* Create lpfc_handle_latt mailbox command from link ACQE */
3522 lpfc_read_topology(phba
, pmb
, mp
);
3523 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
3524 pmb
->vport
= phba
->pport
;
3526 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3527 if (rc
== MBX_NOT_FINISHED
)
3528 goto out_free_dmabuf
;
3534 mempool_free(pmb
, phba
->mbox_mem_pool
);
3538 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3539 * @phba: pointer to lpfc hba data structure.
3540 * @acqe_fc: pointer to the async SLI completion queue entry.
3542 * This routine is to handle the SLI4 asynchronous SLI events.
3545 lpfc_sli4_async_sli_evt(struct lpfc_hba
*phba
, struct lpfc_acqe_sli
*acqe_sli
)
3547 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3548 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3549 "x%08x SLI Event Type:%d",
3550 acqe_sli
->event_data1
, acqe_sli
->event_data2
,
3551 bf_get(lpfc_trailer_type
, acqe_sli
));
3556 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3557 * @vport: pointer to vport data structure.
3559 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3560 * response to a CVL event.
3562 * Return the pointer to the ndlp with the vport if successful, otherwise
3565 static struct lpfc_nodelist
*
3566 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3568 struct lpfc_nodelist
*ndlp
;
3569 struct Scsi_Host
*shost
;
3570 struct lpfc_hba
*phba
;
3577 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3579 /* Cannot find existing Fabric ndlp, so allocate a new one */
3580 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3583 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3584 /* Set the node type */
3585 ndlp
->nlp_type
|= NLP_FABRIC
;
3586 /* Put ndlp onto node list */
3587 lpfc_enqueue_node(vport
, ndlp
);
3588 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3589 /* re-setup ndlp without removing from node list */
3590 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3594 if ((phba
->pport
->port_state
< LPFC_FLOGI
) &&
3595 (phba
->pport
->port_state
!= LPFC_VPORT_FAILED
))
3597 /* If virtual link is not yet instantiated ignore CVL */
3598 if ((vport
!= phba
->pport
) && (vport
->port_state
< LPFC_FDISC
)
3599 && (vport
->port_state
!= LPFC_VPORT_FAILED
))
3601 shost
= lpfc_shost_from_vport(vport
);
3604 lpfc_linkdown_port(vport
);
3605 lpfc_cleanup_pending_mbox(vport
);
3606 spin_lock_irq(shost
->host_lock
);
3607 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3608 spin_unlock_irq(shost
->host_lock
);
3614 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3615 * @vport: pointer to lpfc hba data structure.
3617 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3618 * response to a FCF dead event.
3621 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3623 struct lpfc_vport
**vports
;
3626 vports
= lpfc_create_vport_work_array(phba
);
3628 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3629 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3630 lpfc_destroy_vport_work_array(phba
, vports
);
3634 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3635 * @phba: pointer to lpfc hba data structure.
3636 * @acqe_link: pointer to the async fcoe completion queue entry.
3638 * This routine is to handle the SLI4 asynchronous fcoe event.
3641 lpfc_sli4_async_fip_evt(struct lpfc_hba
*phba
,
3642 struct lpfc_acqe_fip
*acqe_fip
)
3644 uint8_t event_type
= bf_get(lpfc_trailer_type
, acqe_fip
);
3646 struct lpfc_vport
*vport
;
3647 struct lpfc_nodelist
*ndlp
;
3648 struct Scsi_Host
*shost
;
3649 int active_vlink_present
;
3650 struct lpfc_vport
**vports
;
3653 phba
->fc_eventTag
= acqe_fip
->event_tag
;
3654 phba
->fcoe_eventtag
= acqe_fip
->event_tag
;
3655 switch (event_type
) {
3656 case LPFC_FIP_EVENT_TYPE_NEW_FCF
:
3657 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD
:
3658 if (event_type
== LPFC_FIP_EVENT_TYPE_NEW_FCF
)
3659 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3661 "2546 New FCF event, evt_tag:x%x, "
3663 acqe_fip
->event_tag
,
3666 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3668 "2788 FCF param modified event, "
3669 "evt_tag:x%x, index:x%x\n",
3670 acqe_fip
->event_tag
,
3672 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3674 * During period of FCF discovery, read the FCF
3675 * table record indexed by the event to update
3676 * FCF roundrobin failover eligible FCF bmask.
3678 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3680 "2779 Read FCF (x%x) for updating "
3681 "roundrobin FCF failover bmask\n",
3683 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fip
->index
);
3686 /* If the FCF discovery is in progress, do nothing. */
3687 spin_lock_irq(&phba
->hbalock
);
3688 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3689 spin_unlock_irq(&phba
->hbalock
);
3692 /* If fast FCF failover rescan event is pending, do nothing */
3693 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3694 spin_unlock_irq(&phba
->hbalock
);
3698 /* If the FCF has been in discovered state, do nothing. */
3699 if (phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) {
3700 spin_unlock_irq(&phba
->hbalock
);
3703 spin_unlock_irq(&phba
->hbalock
);
3705 /* Otherwise, scan the entire FCF table and re-discover SAN */
3706 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3707 "2770 Start FCF table scan per async FCF "
3708 "event, evt_tag:x%x, index:x%x\n",
3709 acqe_fip
->event_tag
, acqe_fip
->index
);
3710 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3711 LPFC_FCOE_FCF_GET_FIRST
);
3713 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3714 "2547 Issue FCF scan read FCF mailbox "
3715 "command failed (x%x)\n", rc
);
3718 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL
:
3719 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3720 "2548 FCF Table full count 0x%x tag 0x%x\n",
3721 bf_get(lpfc_acqe_fip_fcf_count
, acqe_fip
),
3722 acqe_fip
->event_tag
);
3725 case LPFC_FIP_EVENT_TYPE_FCF_DEAD
:
3726 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3727 "2549 FCF (x%x) disconnected from network, "
3728 "tag:x%x\n", acqe_fip
->index
, acqe_fip
->event_tag
);
3730 * If we are in the middle of FCF failover process, clear
3731 * the corresponding FCF bit in the roundrobin bitmap.
3733 spin_lock_irq(&phba
->hbalock
);
3734 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3735 spin_unlock_irq(&phba
->hbalock
);
3736 /* Update FLOGI FCF failover eligible FCF bmask */
3737 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fip
->index
);
3740 spin_unlock_irq(&phba
->hbalock
);
3742 /* If the event is not for currently used fcf do nothing */
3743 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fip
->index
)
3747 * Otherwise, request the port to rediscover the entire FCF
3748 * table for a fast recovery from case that the current FCF
3749 * is no longer valid as we are not in the middle of FCF
3750 * failover process already.
3752 spin_lock_irq(&phba
->hbalock
);
3753 /* Mark the fast failover process in progress */
3754 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3755 spin_unlock_irq(&phba
->hbalock
);
3757 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3758 "2771 Start FCF fast failover process due to "
3759 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3760 "\n", acqe_fip
->event_tag
, acqe_fip
->index
);
3761 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3763 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3765 "2772 Issue FCF rediscover mabilbox "
3766 "command failed, fail through to FCF "
3768 spin_lock_irq(&phba
->hbalock
);
3769 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3770 spin_unlock_irq(&phba
->hbalock
);
3772 * Last resort will fail over by treating this
3773 * as a link down to FCF registration.
3775 lpfc_sli4_fcf_dead_failthrough(phba
);
3777 /* Reset FCF roundrobin bmask for new discovery */
3778 lpfc_sli4_clear_fcf_rr_bmask(phba
);
3780 * Handling fast FCF failover to a DEAD FCF event is
3781 * considered equalivant to receiving CVL to all vports.
3783 lpfc_sli4_perform_all_vport_cvl(phba
);
3786 case LPFC_FIP_EVENT_TYPE_CVL
:
3787 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3788 "2718 Clear Virtual Link Received for VPI 0x%x"
3789 " tag 0x%x\n", acqe_fip
->index
, acqe_fip
->event_tag
);
3791 vport
= lpfc_find_vport_by_vpid(phba
,
3793 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3796 active_vlink_present
= 0;
3798 vports
= lpfc_create_vport_work_array(phba
);
3800 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3802 if ((!(vports
[i
]->fc_flag
&
3803 FC_VPORT_CVL_RCVD
)) &&
3804 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3805 active_vlink_present
= 1;
3809 lpfc_destroy_vport_work_array(phba
, vports
);
3812 if (active_vlink_present
) {
3814 * If there are other active VLinks present,
3815 * re-instantiate the Vlink using FDISC.
3817 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3818 shost
= lpfc_shost_from_vport(vport
);
3819 spin_lock_irq(shost
->host_lock
);
3820 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3821 spin_unlock_irq(shost
->host_lock
);
3822 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3823 vport
->port_state
= LPFC_FDISC
;
3826 * Otherwise, we request port to rediscover
3827 * the entire FCF table for a fast recovery
3828 * from possible case that the current FCF
3829 * is no longer valid if we are not already
3830 * in the FCF failover process.
3832 spin_lock_irq(&phba
->hbalock
);
3833 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3834 spin_unlock_irq(&phba
->hbalock
);
3837 /* Mark the fast failover process in progress */
3838 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3839 spin_unlock_irq(&phba
->hbalock
);
3840 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3842 "2773 Start FCF failover per CVL, "
3843 "evt_tag:x%x\n", acqe_fip
->event_tag
);
3844 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3846 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3848 "2774 Issue FCF rediscover "
3849 "mabilbox command failed, "
3850 "through to CVL event\n");
3851 spin_lock_irq(&phba
->hbalock
);
3852 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3853 spin_unlock_irq(&phba
->hbalock
);
3855 * Last resort will be re-try on the
3856 * the current registered FCF entry.
3858 lpfc_retry_pport_discovery(phba
);
3861 * Reset FCF roundrobin bmask for new
3864 lpfc_sli4_clear_fcf_rr_bmask(phba
);
3868 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3869 "0288 Unknown FCoE event type 0x%x event tag "
3870 "0x%x\n", event_type
, acqe_fip
->event_tag
);
3876 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3877 * @phba: pointer to lpfc hba data structure.
3878 * @acqe_link: pointer to the async dcbx completion queue entry.
3880 * This routine is to handle the SLI4 asynchronous dcbx event.
3883 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3884 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3886 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3887 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3888 "0290 The SLI4 DCBX asynchronous event is not "
3893 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3894 * @phba: pointer to lpfc hba data structure.
3895 * @acqe_link: pointer to the async grp5 completion queue entry.
3897 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3898 * is an asynchronous notified of a logical link speed change. The Port
3899 * reports the logical link speed in units of 10Mbps.
3902 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
3903 struct lpfc_acqe_grp5
*acqe_grp5
)
3905 uint16_t prev_ll_spd
;
3907 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
3908 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
3909 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
3910 phba
->sli4_hba
.link_state
.logical_speed
=
3911 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
));
3912 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3913 "2789 GRP5 Async Event: Updating logical link speed "
3914 "from %dMbps to %dMbps\n", (prev_ll_spd
* 10),
3915 (phba
->sli4_hba
.link_state
.logical_speed
*10));
3919 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3920 * @phba: pointer to lpfc hba data structure.
3922 * This routine is invoked by the worker thread to process all the pending
3923 * SLI4 asynchronous events.
3925 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3927 struct lpfc_cq_event
*cq_event
;
3929 /* First, declare the async event has been handled */
3930 spin_lock_irq(&phba
->hbalock
);
3931 phba
->hba_flag
&= ~ASYNC_EVENT
;
3932 spin_unlock_irq(&phba
->hbalock
);
3933 /* Now, handle all the async events */
3934 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3935 /* Get the first event from the head of the event queue */
3936 spin_lock_irq(&phba
->hbalock
);
3937 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3938 cq_event
, struct lpfc_cq_event
, list
);
3939 spin_unlock_irq(&phba
->hbalock
);
3940 /* Process the asynchronous event */
3941 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3942 case LPFC_TRAILER_CODE_LINK
:
3943 lpfc_sli4_async_link_evt(phba
,
3944 &cq_event
->cqe
.acqe_link
);
3946 case LPFC_TRAILER_CODE_FCOE
:
3947 lpfc_sli4_async_fip_evt(phba
, &cq_event
->cqe
.acqe_fip
);
3949 case LPFC_TRAILER_CODE_DCBX
:
3950 lpfc_sli4_async_dcbx_evt(phba
,
3951 &cq_event
->cqe
.acqe_dcbx
);
3953 case LPFC_TRAILER_CODE_GRP5
:
3954 lpfc_sli4_async_grp5_evt(phba
,
3955 &cq_event
->cqe
.acqe_grp5
);
3957 case LPFC_TRAILER_CODE_FC
:
3958 lpfc_sli4_async_fc_evt(phba
, &cq_event
->cqe
.acqe_fc
);
3960 case LPFC_TRAILER_CODE_SLI
:
3961 lpfc_sli4_async_sli_evt(phba
, &cq_event
->cqe
.acqe_sli
);
3964 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3965 "1804 Invalid asynchrous event code: "
3966 "x%x\n", bf_get(lpfc_trailer_code
,
3967 &cq_event
->cqe
.mcqe_cmpl
));
3970 /* Free the completion event processed to the free pool */
3971 lpfc_sli4_cq_event_release(phba
, cq_event
);
3976 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3977 * @phba: pointer to lpfc hba data structure.
3979 * This routine is invoked by the worker thread to process FCF table
3980 * rediscovery pending completion event.
3982 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3986 spin_lock_irq(&phba
->hbalock
);
3987 /* Clear FCF rediscovery timeout event */
3988 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3989 /* Clear driver fast failover FCF record flag */
3990 phba
->fcf
.failover_rec
.flag
= 0;
3991 /* Set state for FCF fast failover */
3992 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3993 spin_unlock_irq(&phba
->hbalock
);
3995 /* Scan FCF table from the first entry to re-discover SAN */
3996 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3997 "2777 Start post-quiescent FCF table scan\n");
3998 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
4000 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
4001 "2747 Issue FCF scan read FCF mailbox "
4002 "command failed 0x%x\n", rc
);
4006 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4007 * @phba: pointer to lpfc hba data structure.
4008 * @dev_grp: The HBA PCI-Device group number.
4010 * This routine is invoked to set up the per HBA PCI-Device group function
4011 * API jump table entries.
4013 * Return: 0 if success, otherwise -ENODEV
4016 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4020 /* Set up lpfc PCI-device group */
4021 phba
->pci_dev_grp
= dev_grp
;
4023 /* The LPFC_PCI_DEV_OC uses SLI4 */
4024 if (dev_grp
== LPFC_PCI_DEV_OC
)
4025 phba
->sli_rev
= LPFC_SLI_REV4
;
4027 /* Set up device INIT API function jump table */
4028 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
4031 /* Set up SCSI API function jump table */
4032 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
4035 /* Set up SLI API function jump table */
4036 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
4039 /* Set up MBOX API function jump table */
4040 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
4048 * lpfc_log_intr_mode - Log the active interrupt mode
4049 * @phba: pointer to lpfc hba data structure.
4050 * @intr_mode: active interrupt mode adopted.
4052 * This routine it invoked to log the currently used active interrupt mode
4055 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
4057 switch (intr_mode
) {
4059 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4060 "0470 Enable INTx interrupt mode.\n");
4063 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4064 "0481 Enabled MSI interrupt mode.\n");
4067 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4068 "0480 Enabled MSI-X interrupt mode.\n");
4071 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4072 "0482 Illegal interrupt mode.\n");
4079 * lpfc_enable_pci_dev - Enable a generic PCI device.
4080 * @phba: pointer to lpfc hba data structure.
4082 * This routine is invoked to enable the PCI device that is common to all
4087 * other values - error
4090 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
4092 struct pci_dev
*pdev
;
4095 /* Obtain PCI device reference */
4099 pdev
= phba
->pcidev
;
4100 /* Select PCI BARs */
4101 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
4102 /* Enable PCI device */
4103 if (pci_enable_device_mem(pdev
))
4105 /* Request PCI resource for the device */
4106 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
4107 goto out_disable_device
;
4108 /* Set up device as PCI master and save state for EEH */
4109 pci_set_master(pdev
);
4110 pci_try_set_mwi(pdev
);
4111 pci_save_state(pdev
);
4113 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4114 if (pci_find_capability(pdev
, PCI_CAP_ID_EXP
))
4115 pdev
->needs_freset
= 1;
4120 pci_disable_device(pdev
);
4122 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4123 "1401 Failed to enable pci device, bars:x%x\n", bars
);
4128 * lpfc_disable_pci_dev - Disable a generic PCI device.
4129 * @phba: pointer to lpfc hba data structure.
4131 * This routine is invoked to disable the PCI device that is common to all
4135 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
4137 struct pci_dev
*pdev
;
4140 /* Obtain PCI device reference */
4144 pdev
= phba
->pcidev
;
4145 /* Select PCI BARs */
4146 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
4147 /* Release PCI resource and disable PCI device */
4148 pci_release_selected_regions(pdev
, bars
);
4149 pci_disable_device(pdev
);
4150 /* Null out PCI private reference to driver */
4151 pci_set_drvdata(pdev
, NULL
);
4157 * lpfc_reset_hba - Reset a hba
4158 * @phba: pointer to lpfc hba data structure.
4160 * This routine is invoked to reset a hba device. It brings the HBA
4161 * offline, performs a board restart, and then brings the board back
4162 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4163 * on outstanding mailbox commands.
4166 lpfc_reset_hba(struct lpfc_hba
*phba
)
4168 /* If resets are disabled then set error state and return. */
4169 if (!phba
->cfg_enable_hba_reset
) {
4170 phba
->link_state
= LPFC_HBA_ERROR
;
4173 lpfc_offline_prep(phba
);
4175 lpfc_sli_brdrestart(phba
);
4177 lpfc_unblock_mgmt_io(phba
);
4181 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4182 * @phba: pointer to lpfc hba data structure.
4184 * This function enables the PCI SR-IOV virtual functions to a physical
4185 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4186 * enable the number of virtual functions to the physical function. As
4187 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4188 * API call does not considered as an error condition for most of the device.
4191 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba
*phba
)
4193 struct pci_dev
*pdev
= phba
->pcidev
;
4197 pos
= pci_find_ext_capability(pdev
, PCI_EXT_CAP_ID_SRIOV
);
4201 pci_read_config_word(pdev
, pos
+ PCI_SRIOV_TOTAL_VF
, &nr_virtfn
);
4206 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4207 * @phba: pointer to lpfc hba data structure.
4208 * @nr_vfn: number of virtual functions to be enabled.
4210 * This function enables the PCI SR-IOV virtual functions to a physical
4211 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4212 * enable the number of virtual functions to the physical function. As
4213 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4214 * API call does not considered as an error condition for most of the device.
4217 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba
*phba
, int nr_vfn
)
4219 struct pci_dev
*pdev
= phba
->pcidev
;
4220 uint16_t max_nr_vfn
;
4223 max_nr_vfn
= lpfc_sli_sriov_nr_virtfn_get(phba
);
4224 if (nr_vfn
> max_nr_vfn
) {
4225 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4226 "3057 Requested vfs (%d) greater than "
4227 "supported vfs (%d)", nr_vfn
, max_nr_vfn
);
4231 rc
= pci_enable_sriov(pdev
, nr_vfn
);
4233 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4234 "2806 Failed to enable sriov on this device "
4235 "with vfn number nr_vf:%d, rc:%d\n",
4238 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4239 "2807 Successful enable sriov on this device "
4240 "with vfn number nr_vf:%d\n", nr_vfn
);
4245 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4246 * @phba: pointer to lpfc hba data structure.
4248 * This routine is invoked to set up the driver internal resources specific to
4249 * support the SLI-3 HBA device it attached to.
4253 * other values - error
4256 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
4258 struct lpfc_sli
*psli
;
4262 * Initialize timers used by driver
4265 /* Heartbeat timer */
4266 init_timer(&phba
->hb_tmofunc
);
4267 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
4268 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
4271 /* MBOX heartbeat timer */
4272 init_timer(&psli
->mbox_tmo
);
4273 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
4274 psli
->mbox_tmo
.data
= (unsigned long) phba
;
4275 /* FCP polling mode timer */
4276 init_timer(&phba
->fcp_poll_timer
);
4277 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
4278 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
4279 /* Fabric block timer */
4280 init_timer(&phba
->fabric_block_timer
);
4281 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
4282 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
4283 /* EA polling mode timer */
4284 init_timer(&phba
->eratt_poll
);
4285 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4286 phba
->eratt_poll
.data
= (unsigned long) phba
;
4288 /* Host attention work mask setup */
4289 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
4290 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
4292 /* Get all the module params for configuring this host */
4293 lpfc_get_cfgparam(phba
);
4294 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
4295 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
4296 /* check for menlo minimum sg count */
4297 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
4298 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
4302 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4303 * used to create the sg_dma_buf_pool must be dynamically calculated.
4304 * 2 segments are added since the IOCB needs a command and response bde.
4306 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
4307 sizeof(struct fcp_rsp
) +
4308 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
4310 if (phba
->cfg_enable_bg
) {
4311 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
4312 phba
->cfg_sg_dma_buf_size
+=
4313 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
4316 /* Also reinitialize the host templates with new values. */
4317 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
4318 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
4320 phba
->max_vpi
= LPFC_MAX_VPI
;
4321 /* This will be set to correct value after config_port mbox */
4322 phba
->max_vports
= 0;
4325 * Initialize the SLI Layer to run with lpfc HBAs.
4327 lpfc_sli_setup(phba
);
4328 lpfc_sli_queue_setup(phba
);
4330 /* Allocate device driver memory */
4331 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
4335 * Enable sr-iov virtual functions if supported and configured
4336 * through the module parameter.
4338 if (phba
->cfg_sriov_nr_virtfn
> 0) {
4339 rc
= lpfc_sli_probe_sriov_nr_virtfn(phba
,
4340 phba
->cfg_sriov_nr_virtfn
);
4342 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4343 "2808 Requested number of SR-IOV "
4344 "virtual functions (%d) is not "
4346 phba
->cfg_sriov_nr_virtfn
);
4347 phba
->cfg_sriov_nr_virtfn
= 0;
4355 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4356 * @phba: pointer to lpfc hba data structure.
4358 * This routine is invoked to unset the driver internal resources set up
4359 * specific for supporting the SLI-3 HBA device it attached to.
4362 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
4364 /* Free device driver memory allocated */
4365 lpfc_mem_free_all(phba
);
4371 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4372 * @phba: pointer to lpfc hba data structure.
4374 * This routine is invoked to set up the driver internal resources specific to
4375 * support the SLI-4 HBA device it attached to.
4379 * other values - error
4382 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
4384 struct lpfc_sli
*psli
;
4385 LPFC_MBOXQ_t
*mboxq
;
4386 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
4387 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
4388 struct lpfc_mqe
*mqe
;
4389 int longs
, sli_family
;
4390 int sges_per_segment
;
4392 /* Before proceed, wait for POST done and device ready */
4393 rc
= lpfc_sli4_post_status_check(phba
);
4398 * Initialize timers used by driver
4401 /* Heartbeat timer */
4402 init_timer(&phba
->hb_tmofunc
);
4403 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
4404 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
4405 init_timer(&phba
->rrq_tmr
);
4406 phba
->rrq_tmr
.function
= lpfc_rrq_timeout
;
4407 phba
->rrq_tmr
.data
= (unsigned long)phba
;
4410 /* MBOX heartbeat timer */
4411 init_timer(&psli
->mbox_tmo
);
4412 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
4413 psli
->mbox_tmo
.data
= (unsigned long) phba
;
4414 /* Fabric block timer */
4415 init_timer(&phba
->fabric_block_timer
);
4416 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
4417 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
4418 /* EA polling mode timer */
4419 init_timer(&phba
->eratt_poll
);
4420 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4421 phba
->eratt_poll
.data
= (unsigned long) phba
;
4422 /* FCF rediscover timer */
4423 init_timer(&phba
->fcf
.redisc_wait
);
4424 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
4425 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
4428 * Control structure for handling external multi-buffer mailbox
4429 * command pass-through.
4431 memset((uint8_t *)&phba
->mbox_ext_buf_ctx
, 0,
4432 sizeof(struct lpfc_mbox_ext_buf_ctx
));
4433 INIT_LIST_HEAD(&phba
->mbox_ext_buf_ctx
.ext_dmabuf_list
);
4436 * We need to do a READ_CONFIG mailbox command here before
4437 * calling lpfc_get_cfgparam. For VFs this will report the
4438 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4439 * All of the resources allocated
4440 * for this Port are tied to these values.
4442 /* Get all the module params for configuring this host */
4443 lpfc_get_cfgparam(phba
);
4444 phba
->max_vpi
= LPFC_MAX_VPI
;
4445 /* This will be set to correct value after the read_config mbox */
4446 phba
->max_vports
= 0;
4448 /* Program the default value of vlan_id and fc_map */
4449 phba
->valid_vlan
= 0;
4450 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4451 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4452 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4454 /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4455 sges_per_segment
= 1;
4456 if (phba
->cfg_enable_bg
)
4457 sges_per_segment
= 2;
4460 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4461 * used to create the sg_dma_buf_pool must be dynamically calculated.
4462 * 2 segments are added since the IOCB needs a command and response bde.
4463 * To insure that the scsi sgl does not cross a 4k page boundary only
4464 * sgl sizes of must be a power of 2.
4466 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
4467 (((phba
->cfg_sg_seg_cnt
* sges_per_segment
) + 2) *
4468 sizeof(struct sli4_sge
)));
4470 sli_family
= bf_get(lpfc_sli_intf_sli_family
, &phba
->sli4_hba
.sli_intf
);
4471 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4472 switch (sli_family
) {
4473 case LPFC_SLI_INTF_FAMILY_BE2
:
4474 case LPFC_SLI_INTF_FAMILY_BE3
:
4475 /* There is a single hint for BE - 2 pages per BPL. */
4476 if (bf_get(lpfc_sli_intf_sli_hint1
, &phba
->sli4_hba
.sli_intf
) ==
4477 LPFC_SLI_INTF_SLI_HINT1_1
)
4478 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4480 case LPFC_SLI_INTF_FAMILY_LNCR_A0
:
4481 case LPFC_SLI_INTF_FAMILY_LNCR_B0
:
4486 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4487 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4488 dma_buf_size
= dma_buf_size
<< 1)
4490 if (dma_buf_size
== max_buf_size
)
4491 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4492 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4493 (2 * sizeof(struct sli4_sge
))) /
4494 sizeof(struct sli4_sge
);
4495 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4497 /* Initialize buffer queue management fields */
4498 hbq_count
= lpfc_sli_hbq_count();
4499 for (i
= 0; i
< hbq_count
; ++i
)
4500 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4501 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4502 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4503 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4506 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4508 /* Initialize the Abort scsi buffer list used by driver */
4509 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4510 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4511 /* This abort list used by worker thread */
4512 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4515 * Initialize driver internal slow-path work queues
4518 /* Driver internel slow-path CQ Event pool */
4519 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4520 /* Response IOCB work queue list */
4521 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4522 /* Asynchronous event CQ Event work queue list */
4523 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4524 /* Fast-path XRI aborted CQ Event work queue list */
4525 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4526 /* Slow-path XRI aborted CQ Event work queue list */
4527 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4528 /* Receive queue CQ Event work queue list */
4529 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4531 /* Initialize extent block lists. */
4532 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_blk_list
);
4533 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_xri_blk_list
);
4534 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_vfi_blk_list
);
4535 INIT_LIST_HEAD(&phba
->lpfc_vpi_blk_list
);
4537 /* Initialize the driver internal SLI layer lists. */
4538 lpfc_sli_setup(phba
);
4539 lpfc_sli_queue_setup(phba
);
4541 /* Allocate device driver memory */
4542 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4546 /* IF Type 2 ports get initialized now. */
4547 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
4548 LPFC_SLI_INTF_IF_TYPE_2
) {
4549 rc
= lpfc_pci_function_reset(phba
);
4554 /* Create the bootstrap mailbox command */
4555 rc
= lpfc_create_bootstrap_mbox(phba
);
4559 /* Set up the host's endian order with the device. */
4560 rc
= lpfc_setup_endian_order(phba
);
4562 goto out_free_bsmbx
;
4564 /* Set up the hba's configuration parameters. */
4565 rc
= lpfc_sli4_read_config(phba
);
4567 goto out_free_bsmbx
;
4569 /* IF Type 0 ports get initialized now. */
4570 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
4571 LPFC_SLI_INTF_IF_TYPE_0
) {
4572 rc
= lpfc_pci_function_reset(phba
);
4574 goto out_free_bsmbx
;
4577 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4581 goto out_free_bsmbx
;
4584 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4585 lpfc_supported_pages(mboxq
);
4586 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4588 mqe
= &mboxq
->u
.mqe
;
4589 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4590 LPFC_MAX_SUPPORTED_PAGES
);
4591 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4592 switch (pn_page
[i
]) {
4593 case LPFC_SLI4_PARAMETERS
:
4594 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4600 /* Read the port's SLI4 Parameters capabilities if supported. */
4601 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4602 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4604 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4606 goto out_free_bsmbx
;
4610 * Get sli4 parameters that override parameters from Port capabilities.
4611 * If this call fails, it isn't critical unless the SLI4 parameters come
4614 rc
= lpfc_get_sli4_parameters(phba
, mboxq
);
4616 if (phba
->sli4_hba
.extents_in_use
&&
4617 phba
->sli4_hba
.rpi_hdrs_in_use
) {
4618 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4619 "2999 Unsupported SLI4 Parameters "
4620 "Extents and RPI headers enabled.\n");
4621 goto out_free_bsmbx
;
4624 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4625 /* Verify all the SLI4 queues */
4626 rc
= lpfc_sli4_queue_verify(phba
);
4628 goto out_free_bsmbx
;
4630 /* Create driver internal CQE event pool */
4631 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4633 goto out_free_bsmbx
;
4635 /* Initialize and populate the iocb list per host */
4636 rc
= lpfc_init_sgl_list(phba
);
4638 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4639 "1400 Failed to initialize sgl list.\n");
4640 goto out_destroy_cq_event_pool
;
4642 rc
= lpfc_init_active_sgl_array(phba
);
4644 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4645 "1430 Failed to initialize sgl list.\n");
4646 goto out_free_sgl_list
;
4648 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4650 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4651 "1432 Failed to initialize rpi headers.\n");
4652 goto out_free_active_sgl
;
4655 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4656 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4657 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4659 if (!phba
->fcf
.fcf_rr_bmask
) {
4660 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4661 "2759 Failed allocate memory for FCF round "
4662 "robin failover bmask\n");
4664 goto out_remove_rpi_hdrs
;
4668 * The cfg_fcp_eq_count can be zero whenever there is exactly one
4669 * interrupt vector. This is not an error
4671 if (phba
->cfg_fcp_eq_count
) {
4672 phba
->sli4_hba
.fcp_eq_hdl
=
4673 kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4674 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4675 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4676 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4677 "2572 Failed allocate memory for "
4678 "fast-path per-EQ handle array\n");
4680 goto out_free_fcf_rr_bmask
;
4684 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4685 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4686 if (!phba
->sli4_hba
.msix_entries
) {
4687 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4688 "2573 Failed allocate memory for msi-x "
4689 "interrupt vector entries\n");
4691 goto out_free_fcp_eq_hdl
;
4695 * Enable sr-iov virtual functions if supported and configured
4696 * through the module parameter.
4698 if (phba
->cfg_sriov_nr_virtfn
> 0) {
4699 rc
= lpfc_sli_probe_sriov_nr_virtfn(phba
,
4700 phba
->cfg_sriov_nr_virtfn
);
4702 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4703 "3020 Requested number of SR-IOV "
4704 "virtual functions (%d) is not "
4706 phba
->cfg_sriov_nr_virtfn
);
4707 phba
->cfg_sriov_nr_virtfn
= 0;
4713 out_free_fcp_eq_hdl
:
4714 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4715 out_free_fcf_rr_bmask
:
4716 kfree(phba
->fcf
.fcf_rr_bmask
);
4717 out_remove_rpi_hdrs
:
4718 lpfc_sli4_remove_rpi_hdrs(phba
);
4719 out_free_active_sgl
:
4720 lpfc_free_active_sgl(phba
);
4722 lpfc_free_sgl_list(phba
);
4723 out_destroy_cq_event_pool
:
4724 lpfc_sli4_cq_event_pool_destroy(phba
);
4726 lpfc_destroy_bootstrap_mbox(phba
);
4728 lpfc_mem_free(phba
);
4733 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4734 * @phba: pointer to lpfc hba data structure.
4736 * This routine is invoked to unset the driver internal resources set up
4737 * specific for supporting the SLI-4 HBA device it attached to.
4740 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4742 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4744 /* Free memory allocated for msi-x interrupt vector entries */
4745 kfree(phba
->sli4_hba
.msix_entries
);
4747 /* Free memory allocated for fast-path work queue handles */
4748 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4750 /* Free the allocated rpi headers. */
4751 lpfc_sli4_remove_rpi_hdrs(phba
);
4752 lpfc_sli4_remove_rpis(phba
);
4754 /* Free eligible FCF index bmask */
4755 kfree(phba
->fcf
.fcf_rr_bmask
);
4757 /* Free the ELS sgl list */
4758 lpfc_free_active_sgl(phba
);
4759 lpfc_free_sgl_list(phba
);
4761 /* Free the SCSI sgl management array */
4762 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4764 /* Free the completion queue EQ event pool */
4765 lpfc_sli4_cq_event_release_all(phba
);
4766 lpfc_sli4_cq_event_pool_destroy(phba
);
4768 /* Release resource identifiers. */
4769 lpfc_sli4_dealloc_resource_identifiers(phba
);
4771 /* Free the bsmbx region. */
4772 lpfc_destroy_bootstrap_mbox(phba
);
4774 /* Free the SLI Layer memory with SLI4 HBAs */
4775 lpfc_mem_free_all(phba
);
4777 /* Free the current connect table */
4778 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4779 &phba
->fcf_conn_rec_list
, list
) {
4780 list_del_init(&conn_entry
->list
);
4788 * lpfc_init_api_table_setup - Set up init api function jump table
4789 * @phba: The hba struct for which this call is being executed.
4790 * @dev_grp: The HBA PCI-Device group number.
4792 * This routine sets up the device INIT interface API function jump table
4795 * Returns: 0 - success, -ENODEV - failure.
4798 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4800 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4801 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4802 phba
->lpfc_selective_reset
= lpfc_selective_reset
;
4804 case LPFC_PCI_DEV_LP
:
4805 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4806 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4807 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4809 case LPFC_PCI_DEV_OC
:
4810 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4811 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4812 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4815 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4816 "1431 Invalid HBA PCI-device group: 0x%x\n",
4825 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4826 * @phba: pointer to lpfc hba data structure.
4828 * This routine is invoked to set up the driver internal resources before the
4829 * device specific resource setup to support the HBA device it attached to.
4833 * other values - error
4836 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4839 * Driver resources common to all SLI revisions
4841 atomic_set(&phba
->fast_event_count
, 0);
4842 spin_lock_init(&phba
->hbalock
);
4844 /* Initialize ndlp management spinlock */
4845 spin_lock_init(&phba
->ndlp_lock
);
4847 INIT_LIST_HEAD(&phba
->port_list
);
4848 INIT_LIST_HEAD(&phba
->work_list
);
4849 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4851 /* Initialize the wait queue head for the kernel thread */
4852 init_waitqueue_head(&phba
->work_waitq
);
4854 /* Initialize the scsi buffer list used by driver for scsi IO */
4855 spin_lock_init(&phba
->scsi_buf_list_lock
);
4856 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4858 /* Initialize the fabric iocb list */
4859 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4861 /* Initialize list to save ELS buffers */
4862 INIT_LIST_HEAD(&phba
->elsbuf
);
4864 /* Initialize FCF connection rec list */
4865 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4871 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4872 * @phba: pointer to lpfc hba data structure.
4874 * This routine is invoked to set up the driver internal resources after the
4875 * device specific resource setup to support the HBA device it attached to.
4879 * other values - error
4882 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4886 /* Startup the kernel thread for this host adapter. */
4887 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4888 "lpfc_worker_%d", phba
->brd_no
);
4889 if (IS_ERR(phba
->worker_thread
)) {
4890 error
= PTR_ERR(phba
->worker_thread
);
4898 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4899 * @phba: pointer to lpfc hba data structure.
4901 * This routine is invoked to unset the driver internal resources set up after
4902 * the device specific resource setup for supporting the HBA device it
4906 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4908 /* Stop kernel worker thread */
4909 kthread_stop(phba
->worker_thread
);
4913 * lpfc_free_iocb_list - Free iocb list.
4914 * @phba: pointer to lpfc hba data structure.
4916 * This routine is invoked to free the driver's IOCB list and memory.
4919 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4921 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4923 spin_lock_irq(&phba
->hbalock
);
4924 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4925 &phba
->lpfc_iocb_list
, list
) {
4926 list_del(&iocbq_entry
->list
);
4928 phba
->total_iocbq_bufs
--;
4930 spin_unlock_irq(&phba
->hbalock
);
4936 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4937 * @phba: pointer to lpfc hba data structure.
4939 * This routine is invoked to allocate and initizlize the driver's IOCB
4940 * list and set up the IOCB tag array accordingly.
4944 * other values - error
4947 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4949 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4953 /* Initialize and populate the iocb list per host. */
4954 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4955 for (i
= 0; i
< iocb_count
; i
++) {
4956 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4957 if (iocbq_entry
== NULL
) {
4958 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4959 "expected %d count. Unloading driver.\n",
4960 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4961 goto out_free_iocbq
;
4964 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4967 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4968 "Unloading driver.\n", __func__
);
4969 goto out_free_iocbq
;
4971 iocbq_entry
->sli4_lxritag
= NO_XRI
;
4972 iocbq_entry
->sli4_xritag
= NO_XRI
;
4974 spin_lock_irq(&phba
->hbalock
);
4975 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4976 phba
->total_iocbq_bufs
++;
4977 spin_unlock_irq(&phba
->hbalock
);
4983 lpfc_free_iocb_list(phba
);
4989 * lpfc_free_sgl_list - Free sgl list.
4990 * @phba: pointer to lpfc hba data structure.
4992 * This routine is invoked to free the driver's sgl list and memory.
4995 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4997 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4998 LIST_HEAD(sglq_list
);
5000 spin_lock_irq(&phba
->hbalock
);
5001 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
5002 spin_unlock_irq(&phba
->hbalock
);
5004 list_for_each_entry_safe(sglq_entry
, sglq_next
,
5006 list_del(&sglq_entry
->list
);
5007 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
5009 phba
->sli4_hba
.total_sglq_bufs
--;
5011 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
5015 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5016 * @phba: pointer to lpfc hba data structure.
5018 * This routine is invoked to allocate the driver's active sgl memory.
5019 * This array will hold the sglq_entry's for active IOs.
5022 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
5025 size
= sizeof(struct lpfc_sglq
*);
5026 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
5028 phba
->sli4_hba
.lpfc_sglq_active_list
=
5029 kzalloc(size
, GFP_KERNEL
);
5030 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
5036 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5037 * @phba: pointer to lpfc hba data structure.
5039 * This routine is invoked to walk through the array of active sglq entries
5040 * and free all of the resources.
5041 * This is just a place holder for now.
5044 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
5046 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
5050 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5051 * @phba: pointer to lpfc hba data structure.
5053 * This routine is invoked to allocate and initizlize the driver's sgl
5054 * list and set up the sgl xritag tag array accordingly.
5058 * other values - error
5061 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
5063 struct lpfc_sglq
*sglq_entry
= NULL
;
5067 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
5068 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5069 "2400 ELS XRI count %d.\n",
5071 /* Initialize and populate the sglq list per host/VF. */
5072 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
5073 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
5075 /* Sanity check on XRI management */
5076 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
5077 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5078 "2562 No room left for SCSI XRI allocation: "
5079 "max_xri=%d, els_xri=%d\n",
5080 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5085 /* Allocate memory for the ELS XRI management array */
5086 phba
->sli4_hba
.lpfc_els_sgl_array
=
5087 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
5090 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
5091 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5092 "2401 Failed to allocate memory for ELS "
5093 "XRI management array of size %d.\n",
5098 /* Keep the SCSI XRI into the XRI management array */
5099 phba
->sli4_hba
.scsi_xri_max
=
5100 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
5101 phba
->sli4_hba
.scsi_xri_cnt
= 0;
5102 phba
->sli4_hba
.lpfc_scsi_psb_array
=
5103 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
5104 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
5106 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
5107 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5108 "2563 Failed to allocate memory for SCSI "
5109 "XRI management array of size %d.\n",
5110 phba
->sli4_hba
.scsi_xri_max
);
5111 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
5115 for (i
= 0; i
< els_xri_cnt
; i
++) {
5116 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
5117 if (sglq_entry
== NULL
) {
5118 printk(KERN_ERR
"%s: only allocated %d sgls of "
5119 "expected %d count. Unloading driver.\n",
5120 __func__
, i
, els_xri_cnt
);
5124 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
5125 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
5126 if (sglq_entry
->virt
== NULL
) {
5128 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
5129 "Unloading driver.\n", __func__
);
5132 sglq_entry
->sgl
= sglq_entry
->virt
;
5133 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
5135 /* The list order is used by later block SGL registraton */
5136 spin_lock_irq(&phba
->hbalock
);
5137 sglq_entry
->state
= SGL_FREED
;
5138 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
5139 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
5140 phba
->sli4_hba
.total_sglq_bufs
++;
5141 spin_unlock_irq(&phba
->hbalock
);
5146 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
5147 lpfc_free_sgl_list(phba
);
5152 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5153 * @phba: pointer to lpfc hba data structure.
5155 * This routine is invoked to post rpi header templates to the
5156 * port for those SLI4 ports that do not support extents. This routine
5157 * posts a PAGE_SIZE memory region to the port to hold up to
5158 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5159 * and should be called only when interrupts are disabled.
5163 * -ERROR - otherwise.
5166 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
5169 struct lpfc_rpi_hdr
*rpi_hdr
;
5171 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
5172 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5174 if (phba
->sli4_hba
.extents_in_use
)
5177 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
5179 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5180 "0391 Error during rpi post operation\n");
5181 lpfc_sli4_remove_rpis(phba
);
5189 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5190 * @phba: pointer to lpfc hba data structure.
5192 * This routine is invoked to allocate a single 4KB memory region to
5193 * support rpis and stores them in the phba. This single region
5194 * provides support for up to 64 rpis. The region is used globally
5198 * A valid rpi hdr on success.
5199 * A NULL pointer on any failure.
5201 struct lpfc_rpi_hdr
*
5202 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
5204 uint16_t rpi_limit
, curr_rpi_range
;
5205 struct lpfc_dmabuf
*dmabuf
;
5206 struct lpfc_rpi_hdr
*rpi_hdr
;
5210 * If the SLI4 port supports extents, posting the rpi header isn't
5211 * required. Set the expected maximum count and let the actual value
5212 * get set when extents are fully allocated.
5214 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5216 if (phba
->sli4_hba
.extents_in_use
)
5219 /* The limit on the logical index is just the max_rpi count. */
5220 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
5221 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
5223 spin_lock_irq(&phba
->hbalock
);
5225 * Establish the starting RPI in this header block. The starting
5226 * rpi is normalized to a zero base because the physical rpi is
5229 curr_rpi_range
= phba
->sli4_hba
.next_rpi
-
5230 phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5231 spin_unlock_irq(&phba
->hbalock
);
5234 * The port has a limited number of rpis. The increment here
5235 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5236 * and to allow the full max_rpi range per port.
5238 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
5239 rpi_count
= rpi_limit
- curr_rpi_range
;
5241 rpi_count
= LPFC_RPI_HDR_COUNT
;
5246 * First allocate the protocol header region for the port. The
5247 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5249 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5253 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5254 LPFC_HDR_TEMPLATE_SIZE
,
5257 if (!dmabuf
->virt
) {
5259 goto err_free_dmabuf
;
5262 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
5263 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
5265 goto err_free_coherent
;
5268 /* Save the rpi header data for cleanup later. */
5269 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
5271 goto err_free_coherent
;
5273 rpi_hdr
->dmabuf
= dmabuf
;
5274 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
5275 rpi_hdr
->page_count
= 1;
5276 spin_lock_irq(&phba
->hbalock
);
5278 /* The rpi_hdr stores the logical index only. */
5279 rpi_hdr
->start_rpi
= curr_rpi_range
;
5280 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
5283 * The next_rpi stores the next logical module-64 rpi value used
5284 * to post physical rpis in subsequent rpi postings.
5286 phba
->sli4_hba
.next_rpi
+= rpi_count
;
5287 spin_unlock_irq(&phba
->hbalock
);
5291 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
5292 dmabuf
->virt
, dmabuf
->phys
);
5299 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5300 * @phba: pointer to lpfc hba data structure.
5302 * This routine is invoked to remove all memory resources allocated
5303 * to support rpis for SLI4 ports not supporting extents. This routine
5304 * presumes the caller has released all rpis consumed by fabric or port
5305 * logins and is prepared to have the header pages removed.
5308 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
5310 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
5312 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5315 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
5316 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
5317 list_del(&rpi_hdr
->list
);
5318 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
5319 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
5320 kfree(rpi_hdr
->dmabuf
);
5324 /* There are no rpis available to the port now. */
5325 phba
->sli4_hba
.next_rpi
= 0;
5329 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5330 * @pdev: pointer to pci device data structure.
5332 * This routine is invoked to allocate the driver hba data structure for an
5333 * HBA device. If the allocation is successful, the phba reference to the
5334 * PCI device data structure is set.
5337 * pointer to @phba - successful
5340 static struct lpfc_hba
*
5341 lpfc_hba_alloc(struct pci_dev
*pdev
)
5343 struct lpfc_hba
*phba
;
5345 /* Allocate memory for HBA structure */
5346 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
5348 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
5352 /* Set reference to PCI device in HBA structure */
5353 phba
->pcidev
= pdev
;
5355 /* Assign an unused board number */
5356 phba
->brd_no
= lpfc_get_instance();
5357 if (phba
->brd_no
< 0) {
5362 spin_lock_init(&phba
->ct_ev_lock
);
5363 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
5369 * lpfc_hba_free - Free driver hba data structure with a device.
5370 * @phba: pointer to lpfc hba data structure.
5372 * This routine is invoked to free the driver hba data structure with an
5376 lpfc_hba_free(struct lpfc_hba
*phba
)
5378 /* Release the driver assigned board number */
5379 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
5386 * lpfc_create_shost - Create hba physical port with associated scsi host.
5387 * @phba: pointer to lpfc hba data structure.
5389 * This routine is invoked to create HBA physical port and associate a SCSI
5394 * other values - error
5397 lpfc_create_shost(struct lpfc_hba
*phba
)
5399 struct lpfc_vport
*vport
;
5400 struct Scsi_Host
*shost
;
5402 /* Initialize HBA FC structure */
5403 phba
->fc_edtov
= FF_DEF_EDTOV
;
5404 phba
->fc_ratov
= FF_DEF_RATOV
;
5405 phba
->fc_altov
= FF_DEF_ALTOV
;
5406 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
5408 atomic_set(&phba
->sdev_cnt
, 0);
5409 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
5413 shost
= lpfc_shost_from_vport(vport
);
5414 phba
->pport
= vport
;
5415 lpfc_debugfs_initialize(vport
);
5416 /* Put reference to SCSI host to driver's device private data */
5417 pci_set_drvdata(phba
->pcidev
, shost
);
5423 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5424 * @phba: pointer to lpfc hba data structure.
5426 * This routine is invoked to destroy HBA physical port and the associated
5430 lpfc_destroy_shost(struct lpfc_hba
*phba
)
5432 struct lpfc_vport
*vport
= phba
->pport
;
5434 /* Destroy physical port that associated with the SCSI host */
5435 destroy_port(vport
);
5441 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5442 * @phba: pointer to lpfc hba data structure.
5443 * @shost: the shost to be used to detect Block guard settings.
5445 * This routine sets up the local Block guard protocol settings for @shost.
5446 * This routine also allocates memory for debugging bg buffers.
5449 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
5452 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
5453 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5454 "1478 Registering BlockGuard with the "
5456 scsi_host_set_prot(shost
, lpfc_prot_mask
);
5457 scsi_host_set_guard(shost
, lpfc_prot_guard
);
5459 if (!_dump_buf_data
) {
5461 spin_lock_init(&_dump_buf_lock
);
5463 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5464 if (_dump_buf_data
) {
5465 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5466 "9043 BLKGRD: allocated %d pages for "
5467 "_dump_buf_data at 0x%p\n",
5468 (1 << pagecnt
), _dump_buf_data
);
5469 _dump_buf_data_order
= pagecnt
;
5470 memset(_dump_buf_data
, 0,
5471 ((1 << PAGE_SHIFT
) << pagecnt
));
5476 if (!_dump_buf_data_order
)
5477 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5478 "9044 BLKGRD: ERROR unable to allocate "
5479 "memory for hexdump\n");
5481 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5482 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5483 "\n", _dump_buf_data
);
5484 if (!_dump_buf_dif
) {
5487 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5488 if (_dump_buf_dif
) {
5489 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5490 "9046 BLKGRD: allocated %d pages for "
5491 "_dump_buf_dif at 0x%p\n",
5492 (1 << pagecnt
), _dump_buf_dif
);
5493 _dump_buf_dif_order
= pagecnt
;
5494 memset(_dump_buf_dif
, 0,
5495 ((1 << PAGE_SHIFT
) << pagecnt
));
5500 if (!_dump_buf_dif_order
)
5501 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5502 "9047 BLKGRD: ERROR unable to allocate "
5503 "memory for hexdump\n");
5505 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5506 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5511 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5512 * @phba: pointer to lpfc hba data structure.
5514 * This routine is invoked to perform all the necessary post initialization
5515 * setup for the device.
5518 lpfc_post_init_setup(struct lpfc_hba
*phba
)
5520 struct Scsi_Host
*shost
;
5521 struct lpfc_adapter_event_header adapter_event
;
5523 /* Get the default values for Model Name and Description */
5524 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5527 * hba setup may have changed the hba_queue_depth so we need to
5528 * adjust the value of can_queue.
5530 shost
= pci_get_drvdata(phba
->pcidev
);
5531 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5532 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5533 lpfc_setup_bg(phba
, shost
);
5535 lpfc_host_attrib_init(shost
);
5537 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5538 spin_lock_irq(shost
->host_lock
);
5539 lpfc_poll_start_timer(phba
);
5540 spin_unlock_irq(shost
->host_lock
);
5543 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5544 "0428 Perform SCSI scan\n");
5545 /* Send board arrival event to upper layer */
5546 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5547 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5548 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5549 sizeof(adapter_event
),
5550 (char *) &adapter_event
,
5556 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5557 * @phba: pointer to lpfc hba data structure.
5559 * This routine is invoked to set up the PCI device memory space for device
5560 * with SLI-3 interface spec.
5564 * other values - error
5567 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5569 struct pci_dev
*pdev
;
5570 unsigned long bar0map_len
, bar2map_len
;
5573 int error
= -ENODEV
;
5575 /* Obtain PCI device reference */
5579 pdev
= phba
->pcidev
;
5581 /* Set the device DMA mask size */
5582 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5583 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5584 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5585 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5590 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5591 * required by each mapping.
5593 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5594 bar0map_len
= pci_resource_len(pdev
, 0);
5596 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5597 bar2map_len
= pci_resource_len(pdev
, 2);
5599 /* Map HBA SLIM to a kernel virtual address. */
5600 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5601 if (!phba
->slim_memmap_p
) {
5602 dev_printk(KERN_ERR
, &pdev
->dev
,
5603 "ioremap failed for SLIM memory.\n");
5607 /* Map HBA Control Registers to a kernel virtual address. */
5608 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5609 if (!phba
->ctrl_regs_memmap_p
) {
5610 dev_printk(KERN_ERR
, &pdev
->dev
,
5611 "ioremap failed for HBA control registers.\n");
5612 goto out_iounmap_slim
;
5615 /* Allocate memory for SLI-2 structures */
5616 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5620 if (!phba
->slim2p
.virt
)
5623 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5624 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5625 phba
->mbox_ext
= (phba
->slim2p
.virt
+
5626 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
5627 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5628 phba
->IOCBs
= (phba
->slim2p
.virt
+
5629 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5631 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5632 lpfc_sli_hbq_size(),
5633 &phba
->hbqslimp
.phys
,
5635 if (!phba
->hbqslimp
.virt
)
5638 hbq_count
= lpfc_sli_hbq_count();
5639 ptr
= phba
->hbqslimp
.virt
;
5640 for (i
= 0; i
< hbq_count
; ++i
) {
5641 phba
->hbqs
[i
].hbq_virt
= ptr
;
5642 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5643 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5644 sizeof(struct lpfc_hbq_entry
));
5646 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5647 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5649 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5651 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5653 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5654 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5655 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5656 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5657 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5662 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5663 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5665 iounmap(phba
->ctrl_regs_memmap_p
);
5667 iounmap(phba
->slim_memmap_p
);
5673 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5674 * @phba: pointer to lpfc hba data structure.
5676 * This routine is invoked to unset the PCI device memory space for device
5677 * with SLI-3 interface spec.
5680 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5682 struct pci_dev
*pdev
;
5684 /* Obtain PCI device reference */
5688 pdev
= phba
->pcidev
;
5690 /* Free coherent DMA memory allocated */
5691 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5692 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5693 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5694 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5696 /* I/O memory unmap */
5697 iounmap(phba
->ctrl_regs_memmap_p
);
5698 iounmap(phba
->slim_memmap_p
);
5704 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5705 * @phba: pointer to lpfc hba data structure.
5707 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5708 * done and check status.
5710 * Return 0 if successful, otherwise -ENODEV.
5713 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5715 struct lpfc_register portsmphr_reg
, uerrlo_reg
, uerrhi_reg
;
5716 struct lpfc_register reg_data
;
5717 int i
, port_error
= 0;
5720 memset(&portsmphr_reg
, 0, sizeof(portsmphr_reg
));
5721 memset(®_data
, 0, sizeof(reg_data
));
5722 if (!phba
->sli4_hba
.PSMPHRregaddr
)
5725 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5726 for (i
= 0; i
< 3000; i
++) {
5727 if (lpfc_readl(phba
->sli4_hba
.PSMPHRregaddr
,
5728 &portsmphr_reg
.word0
) ||
5729 (bf_get(lpfc_port_smphr_perr
, &portsmphr_reg
))) {
5730 /* Port has a fatal POST error, break out */
5731 port_error
= -ENODEV
;
5734 if (LPFC_POST_STAGE_PORT_READY
==
5735 bf_get(lpfc_port_smphr_port_status
, &portsmphr_reg
))
5741 * If there was a port error during POST, then don't proceed with
5742 * other register reads as the data may not be valid. Just exit.
5745 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5746 "1408 Port Failed POST - portsmphr=0x%x, "
5747 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5748 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5749 portsmphr_reg
.word0
,
5750 bf_get(lpfc_port_smphr_perr
, &portsmphr_reg
),
5751 bf_get(lpfc_port_smphr_sfi
, &portsmphr_reg
),
5752 bf_get(lpfc_port_smphr_nip
, &portsmphr_reg
),
5753 bf_get(lpfc_port_smphr_ipc
, &portsmphr_reg
),
5754 bf_get(lpfc_port_smphr_scr1
, &portsmphr_reg
),
5755 bf_get(lpfc_port_smphr_scr2
, &portsmphr_reg
),
5756 bf_get(lpfc_port_smphr_host_scratch
, &portsmphr_reg
),
5757 bf_get(lpfc_port_smphr_port_status
, &portsmphr_reg
));
5759 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5760 "2534 Device Info: SLIFamily=0x%x, "
5761 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5762 "SLIHint_2=0x%x, FT=0x%x\n",
5763 bf_get(lpfc_sli_intf_sli_family
,
5764 &phba
->sli4_hba
.sli_intf
),
5765 bf_get(lpfc_sli_intf_slirev
,
5766 &phba
->sli4_hba
.sli_intf
),
5767 bf_get(lpfc_sli_intf_if_type
,
5768 &phba
->sli4_hba
.sli_intf
),
5769 bf_get(lpfc_sli_intf_sli_hint1
,
5770 &phba
->sli4_hba
.sli_intf
),
5771 bf_get(lpfc_sli_intf_sli_hint2
,
5772 &phba
->sli4_hba
.sli_intf
),
5773 bf_get(lpfc_sli_intf_func_type
,
5774 &phba
->sli4_hba
.sli_intf
));
5776 * Check for other Port errors during the initialization
5777 * process. Fail the load if the port did not come up
5780 if_type
= bf_get(lpfc_sli_intf_if_type
,
5781 &phba
->sli4_hba
.sli_intf
);
5783 case LPFC_SLI_INTF_IF_TYPE_0
:
5784 phba
->sli4_hba
.ue_mask_lo
=
5785 readl(phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
);
5786 phba
->sli4_hba
.ue_mask_hi
=
5787 readl(phba
->sli4_hba
.u
.if_type0
.UEMASKHIregaddr
);
5789 readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
);
5791 readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
);
5792 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5793 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5794 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5795 "1422 Unrecoverable Error "
5796 "Detected during POST "
5797 "uerr_lo_reg=0x%x, "
5798 "uerr_hi_reg=0x%x, "
5799 "ue_mask_lo_reg=0x%x, "
5800 "ue_mask_hi_reg=0x%x\n",
5803 phba
->sli4_hba
.ue_mask_lo
,
5804 phba
->sli4_hba
.ue_mask_hi
);
5805 port_error
= -ENODEV
;
5808 case LPFC_SLI_INTF_IF_TYPE_2
:
5809 /* Final checks. The port status should be clean. */
5810 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
5812 (bf_get(lpfc_sliport_status_err
, ®_data
) &&
5813 !bf_get(lpfc_sliport_status_rn
, ®_data
))) {
5814 phba
->work_status
[0] =
5815 readl(phba
->sli4_hba
.u
.if_type2
.
5817 phba
->work_status
[1] =
5818 readl(phba
->sli4_hba
.u
.if_type2
.
5820 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5821 "2888 Port Error Detected "
5823 "port status reg 0x%x, "
5824 "port_smphr reg 0x%x, "
5825 "error 1=0x%x, error 2=0x%x\n",
5827 portsmphr_reg
.word0
,
5828 phba
->work_status
[0],
5829 phba
->work_status
[1]);
5830 port_error
= -ENODEV
;
5833 case LPFC_SLI_INTF_IF_TYPE_1
:
5842 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5843 * @phba: pointer to lpfc hba data structure.
5844 * @if_type: The SLI4 interface type getting configured.
5846 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5850 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
, uint32_t if_type
)
5853 case LPFC_SLI_INTF_IF_TYPE_0
:
5854 phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
=
5855 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UERR_STATUS_LO
;
5856 phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
=
5857 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UERR_STATUS_HI
;
5858 phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
=
5859 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UE_MASK_LO
;
5860 phba
->sli4_hba
.u
.if_type0
.UEMASKHIregaddr
=
5861 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UE_MASK_HI
;
5862 phba
->sli4_hba
.SLIINTFregaddr
=
5863 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLI_INTF
;
5865 case LPFC_SLI_INTF_IF_TYPE_2
:
5866 phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
=
5867 phba
->sli4_hba
.conf_regs_memmap_p
+
5868 LPFC_CTL_PORT_ER1_OFFSET
;
5869 phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
=
5870 phba
->sli4_hba
.conf_regs_memmap_p
+
5871 LPFC_CTL_PORT_ER2_OFFSET
;
5872 phba
->sli4_hba
.u
.if_type2
.CTRLregaddr
=
5873 phba
->sli4_hba
.conf_regs_memmap_p
+
5874 LPFC_CTL_PORT_CTL_OFFSET
;
5875 phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
=
5876 phba
->sli4_hba
.conf_regs_memmap_p
+
5877 LPFC_CTL_PORT_STA_OFFSET
;
5878 phba
->sli4_hba
.SLIINTFregaddr
=
5879 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLI_INTF
;
5880 phba
->sli4_hba
.PSMPHRregaddr
=
5881 phba
->sli4_hba
.conf_regs_memmap_p
+
5882 LPFC_CTL_PORT_SEM_OFFSET
;
5883 phba
->sli4_hba
.RQDBregaddr
=
5884 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_RQ_DOORBELL
;
5885 phba
->sli4_hba
.WQDBregaddr
=
5886 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_WQ_DOORBELL
;
5887 phba
->sli4_hba
.EQCQDBregaddr
=
5888 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_EQCQ_DOORBELL
;
5889 phba
->sli4_hba
.MQDBregaddr
=
5890 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_MQ_DOORBELL
;
5891 phba
->sli4_hba
.BMBXregaddr
=
5892 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_BMBX
;
5894 case LPFC_SLI_INTF_IF_TYPE_1
:
5896 dev_printk(KERN_ERR
, &phba
->pcidev
->dev
,
5897 "FATAL - unsupported SLI4 interface type - %d\n",
5904 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5905 * @phba: pointer to lpfc hba data structure.
5907 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5911 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5913 phba
->sli4_hba
.PSMPHRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5914 LPFC_SLIPORT_IF0_SMPHR
;
5915 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5917 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5919 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5924 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5925 * @phba: pointer to lpfc hba data structure.
5926 * @vf: virtual function number
5928 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5929 * based on the given viftual function number, @vf.
5931 * Return 0 if successful, otherwise -ENODEV.
5934 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5936 if (vf
> LPFC_VIR_FUNC_MAX
)
5939 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5940 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5941 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5942 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5943 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5944 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5945 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5946 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5947 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5948 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5953 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5954 * @phba: pointer to lpfc hba data structure.
5956 * This routine is invoked to create the bootstrap mailbox
5957 * region consistent with the SLI-4 interface spec. This
5958 * routine allocates all memory necessary to communicate
5959 * mailbox commands to the port and sets up all alignment
5960 * needs. No locks are expected to be held when calling
5965 * -ENOMEM - could not allocated memory.
5968 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5971 struct lpfc_dmabuf
*dmabuf
;
5972 struct dma_address
*dma_address
;
5976 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5981 * The bootstrap mailbox region is comprised of 2 parts
5982 * plus an alignment restriction of 16 bytes.
5984 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5985 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5989 if (!dmabuf
->virt
) {
5993 memset(dmabuf
->virt
, 0, bmbx_size
);
5996 * Initialize the bootstrap mailbox pointers now so that the register
5997 * operations are simple later. The mailbox dma address is required
5998 * to be 16-byte aligned. Also align the virtual memory as each
5999 * maibox is copied into the bmbx mailbox region before issuing the
6000 * command to the port.
6002 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
6003 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
6005 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
6006 LPFC_ALIGN_16_BYTE
);
6007 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
6008 LPFC_ALIGN_16_BYTE
);
6011 * Set the high and low physical addresses now. The SLI4 alignment
6012 * requirement is 16 bytes and the mailbox is posted to the port
6013 * as two 30-bit addresses. The other data is a bit marking whether
6014 * the 30-bit address is the high or low address.
6015 * Upcast bmbx aphys to 64bits so shift instruction compiles
6016 * clean on 32 bit machines.
6018 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
6019 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
6020 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
6021 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
6022 LPFC_BMBX_BIT1_ADDR_HI
);
6024 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
6025 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
6026 LPFC_BMBX_BIT1_ADDR_LO
);
6031 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6032 * @phba: pointer to lpfc hba data structure.
6034 * This routine is invoked to teardown the bootstrap mailbox
6035 * region and release all host resources. This routine requires
6036 * the caller to ensure all mailbox commands recovered, no
6037 * additional mailbox comands are sent, and interrupts are disabled
6038 * before calling this routine.
6042 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
6044 dma_free_coherent(&phba
->pcidev
->dev
,
6045 phba
->sli4_hba
.bmbx
.bmbx_size
,
6046 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
6047 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
6049 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
6050 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
6054 * lpfc_sli4_read_config - Get the config parameters.
6055 * @phba: pointer to lpfc hba data structure.
6057 * This routine is invoked to read the configuration parameters from the HBA.
6058 * The configuration parameters are used to set the base and maximum values
6059 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6060 * allocation for the port.
6064 * -ENOMEM - No available memory
6065 * -EIO - The mailbox failed to complete successfully.
6068 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
6071 struct lpfc_mbx_read_config
*rd_config
;
6072 union lpfc_sli4_cfg_shdr
*shdr
;
6073 uint32_t shdr_status
, shdr_add_status
;
6074 struct lpfc_mbx_get_func_cfg
*get_func_cfg
;
6075 struct lpfc_rsrc_desc_fcfcoe
*desc
;
6076 uint32_t desc_count
;
6077 int length
, i
, rc
= 0;
6079 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6081 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6082 "2011 Unable to allocate memory for issuing "
6083 "SLI_CONFIG_SPECIAL mailbox command\n");
6087 lpfc_read_config(phba
, pmb
);
6089 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6090 if (rc
!= MBX_SUCCESS
) {
6091 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6092 "2012 Mailbox failed , mbxCmd x%x "
6093 "READ_CONFIG, mbxStatus x%x\n",
6094 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
6095 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
6098 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
6099 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv
, rd_config
)) {
6100 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_VAL
;
6101 phba
->sli4_hba
.lnk_info
.lnk_tp
=
6102 bf_get(lpfc_mbx_rd_conf_lnk_type
, rd_config
);
6103 phba
->sli4_hba
.lnk_info
.lnk_no
=
6104 bf_get(lpfc_mbx_rd_conf_lnk_numb
, rd_config
);
6105 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
6106 "3081 lnk_type:%d, lnk_numb:%d\n",
6107 phba
->sli4_hba
.lnk_info
.lnk_tp
,
6108 phba
->sli4_hba
.lnk_info
.lnk_no
);
6110 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
6111 "3082 Mailbox (x%x) returned ldv:x0\n",
6112 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
));
6113 phba
->sli4_hba
.extents_in_use
=
6114 bf_get(lpfc_mbx_rd_conf_extnts_inuse
, rd_config
);
6115 phba
->sli4_hba
.max_cfg_param
.max_xri
=
6116 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
6117 phba
->sli4_hba
.max_cfg_param
.xri_base
=
6118 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
6119 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
6120 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
6121 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
6122 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
6123 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
6124 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
6125 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
6126 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
6127 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
6128 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
6129 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
6130 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
6131 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
6132 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
6133 phba
->sli4_hba
.max_cfg_param
.max_eq
=
6134 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
6135 phba
->sli4_hba
.max_cfg_param
.max_rq
=
6136 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
6137 phba
->sli4_hba
.max_cfg_param
.max_wq
=
6138 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
6139 phba
->sli4_hba
.max_cfg_param
.max_cq
=
6140 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
6141 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
6142 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
6143 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
6144 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
6145 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
6146 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
6147 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
6148 phba
->max_vports
= phba
->max_vpi
;
6149 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
6150 "2003 cfg params Extents? %d "
6156 phba
->sli4_hba
.extents_in_use
,
6157 phba
->sli4_hba
.max_cfg_param
.xri_base
,
6158 phba
->sli4_hba
.max_cfg_param
.max_xri
,
6159 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
6160 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
6161 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
6162 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
6163 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
6164 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
6165 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
6171 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6172 if (phba
->cfg_hba_queue_depth
>
6173 (phba
->sli4_hba
.max_cfg_param
.max_xri
-
6174 lpfc_sli4_get_els_iocb_cnt(phba
)))
6175 phba
->cfg_hba_queue_depth
=
6176 phba
->sli4_hba
.max_cfg_param
.max_xri
-
6177 lpfc_sli4_get_els_iocb_cnt(phba
);
6179 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
6180 LPFC_SLI_INTF_IF_TYPE_2
)
6183 /* get the pf# and vf# for SLI4 if_type 2 port */
6184 length
= (sizeof(struct lpfc_mbx_get_func_cfg
) -
6185 sizeof(struct lpfc_sli4_cfg_mhdr
));
6186 lpfc_sli4_config(phba
, pmb
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6187 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG
,
6188 length
, LPFC_SLI4_MBX_EMBED
);
6190 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6191 shdr
= (union lpfc_sli4_cfg_shdr
*)
6192 &pmb
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6193 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6194 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6195 if (rc
|| shdr_status
|| shdr_add_status
) {
6196 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6197 "3026 Mailbox failed , mbxCmd x%x "
6198 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6199 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
6200 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
6205 /* search for fc_fcoe resrouce descriptor */
6206 get_func_cfg
= &pmb
->u
.mqe
.un
.get_func_cfg
;
6207 desc_count
= get_func_cfg
->func_cfg
.rsrc_desc_count
;
6209 for (i
= 0; i
< LPFC_RSRC_DESC_MAX_NUM
; i
++) {
6210 desc
= (struct lpfc_rsrc_desc_fcfcoe
*)
6211 &get_func_cfg
->func_cfg
.desc
[i
];
6212 if (LPFC_RSRC_DESC_TYPE_FCFCOE
==
6213 bf_get(lpfc_rsrc_desc_pcie_type
, desc
)) {
6214 phba
->sli4_hba
.iov
.pf_number
=
6215 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum
, desc
);
6216 phba
->sli4_hba
.iov
.vf_number
=
6217 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum
, desc
);
6222 if (i
< LPFC_RSRC_DESC_MAX_NUM
)
6223 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
6224 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6225 "vf_number:%d\n", phba
->sli4_hba
.iov
.pf_number
,
6226 phba
->sli4_hba
.iov
.vf_number
);
6228 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6229 "3028 GET_FUNCTION_CONFIG: failed to find "
6230 "Resrouce Descriptor:x%x\n",
6231 LPFC_RSRC_DESC_TYPE_FCFCOE
);
6236 mempool_free(pmb
, phba
->mbox_mem_pool
);
6241 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6242 * @phba: pointer to lpfc hba data structure.
6244 * This routine is invoked to setup the port-side endian order when
6245 * the port if_type is 0. This routine has no function for other
6250 * -ENOMEM - No available memory
6251 * -EIO - The mailbox failed to complete successfully.
6254 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
6256 LPFC_MBOXQ_t
*mboxq
;
6257 uint32_t if_type
, rc
= 0;
6258 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
6259 HOST_ENDIAN_HIGH_WORD1
};
6261 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
6263 case LPFC_SLI_INTF_IF_TYPE_0
:
6264 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
6267 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6268 "0492 Unable to allocate memory for "
6269 "issuing SLI_CONFIG_SPECIAL mailbox "
6275 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6276 * two words to contain special data values and no other data.
6278 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
6279 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
6280 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6281 if (rc
!= MBX_SUCCESS
) {
6282 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6283 "0493 SLI_CONFIG_SPECIAL mailbox "
6284 "failed with status x%x\n",
6288 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6290 case LPFC_SLI_INTF_IF_TYPE_2
:
6291 case LPFC_SLI_INTF_IF_TYPE_1
:
6299 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6300 * @phba: pointer to lpfc hba data structure.
6302 * This routine is invoked to check the user settable queue counts for EQs and
6303 * CQs. after this routine is called the counts will be set to valid values that
6304 * adhere to the constraints of the system's interrupt vectors and the port's
6309 * -ENOMEM - No available memory
6312 lpfc_sli4_queue_verify(struct lpfc_hba
*phba
)
6314 int cfg_fcp_wq_count
;
6315 int cfg_fcp_eq_count
;
6318 * Sanity check for confiugred queue parameters against the run-time
6322 /* Sanity check on FCP fast-path WQ parameters */
6323 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
6324 if (cfg_fcp_wq_count
>
6325 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
6326 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
6328 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
6329 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6330 "2581 Not enough WQs (%d) from "
6331 "the pci function for supporting "
6333 phba
->sli4_hba
.max_cfg_param
.max_wq
,
6334 phba
->cfg_fcp_wq_count
);
6337 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6338 "2582 Not enough WQs (%d) from the pci "
6339 "function for supporting the requested "
6340 "FCP WQs (%d), the actual FCP WQs can "
6341 "be supported: %d\n",
6342 phba
->sli4_hba
.max_cfg_param
.max_wq
,
6343 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
6345 /* The actual number of FCP work queues adopted */
6346 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
6348 /* Sanity check on FCP fast-path EQ parameters */
6349 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
6350 if (cfg_fcp_eq_count
>
6351 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
6352 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
6354 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
6355 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6356 "2574 Not enough EQs (%d) from the "
6357 "pci function for supporting FCP "
6359 phba
->sli4_hba
.max_cfg_param
.max_eq
,
6360 phba
->cfg_fcp_eq_count
);
6363 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6364 "2575 Not enough EQs (%d) from the pci "
6365 "function for supporting the requested "
6366 "FCP EQs (%d), the actual FCP EQs can "
6367 "be supported: %d\n",
6368 phba
->sli4_hba
.max_cfg_param
.max_eq
,
6369 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
6371 /* It does not make sense to have more EQs than WQs */
6372 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
6373 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6374 "2593 The FCP EQ count(%d) cannot be greater "
6375 "than the FCP WQ count(%d), limiting the "
6376 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
6377 phba
->cfg_fcp_wq_count
,
6378 phba
->cfg_fcp_wq_count
);
6379 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
6381 /* The actual number of FCP event queues adopted */
6382 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
6383 /* The overall number of event queues used */
6384 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
6386 /* Get EQ depth from module parameter, fake the default for now */
6387 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
6388 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
6390 /* Get CQ depth from module parameter, fake the default for now */
6391 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
6392 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
6400 * lpfc_sli4_queue_create - Create all the SLI4 queues
6401 * @phba: pointer to lpfc hba data structure.
6403 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6404 * operation. For each SLI4 queue type, the parameters such as queue entry
6405 * count (queue depth) shall be taken from the module parameter. For now,
6406 * we just use some constant number as place holder.
6410 * -ENOMEM - No availble memory
6411 * -EIO - The mailbox failed to complete successfully.
6414 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
6416 struct lpfc_queue
*qdesc
;
6417 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
6420 * Create Event Queues (EQs)
6423 /* Create slow path event queue */
6424 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
6425 phba
->sli4_hba
.eq_ecount
);
6427 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6428 "0496 Failed allocate slow-path EQ\n");
6431 phba
->sli4_hba
.sp_eq
= qdesc
;
6434 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be
6435 * zero whenever there is exactly one interrupt vector. This is not
6438 if (phba
->cfg_fcp_eq_count
) {
6439 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
6440 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
6441 if (!phba
->sli4_hba
.fp_eq
) {
6442 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6443 "2576 Failed allocate memory for "
6444 "fast-path EQ record array\n");
6445 goto out_free_sp_eq
;
6448 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
6449 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
6450 phba
->sli4_hba
.eq_ecount
);
6452 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6453 "0497 Failed allocate fast-path EQ\n");
6454 goto out_free_fp_eq
;
6456 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
6460 * Create Complete Queues (CQs)
6463 /* Create slow-path Mailbox Command Complete Queue */
6464 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6465 phba
->sli4_hba
.cq_ecount
);
6467 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6468 "0500 Failed allocate slow-path mailbox CQ\n");
6469 goto out_free_fp_eq
;
6471 phba
->sli4_hba
.mbx_cq
= qdesc
;
6473 /* Create slow-path ELS Complete Queue */
6474 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6475 phba
->sli4_hba
.cq_ecount
);
6477 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6478 "0501 Failed allocate slow-path ELS CQ\n");
6479 goto out_free_mbx_cq
;
6481 phba
->sli4_hba
.els_cq
= qdesc
;
6485 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6486 * If there are no FCP EQs then create exactly one FCP CQ.
6488 if (phba
->cfg_fcp_eq_count
)
6489 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
6490 phba
->cfg_fcp_eq_count
),
6493 phba
->sli4_hba
.fcp_cq
= kzalloc(sizeof(struct lpfc_queue
*),
6495 if (!phba
->sli4_hba
.fcp_cq
) {
6496 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6497 "2577 Failed allocate memory for fast-path "
6498 "CQ record array\n");
6499 goto out_free_els_cq
;
6503 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6504 phba
->sli4_hba
.cq_ecount
);
6506 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6507 "0499 Failed allocate fast-path FCP "
6508 "CQ (%d)\n", fcp_cqidx
);
6509 goto out_free_fcp_cq
;
6511 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
6512 } while (++fcp_cqidx
< phba
->cfg_fcp_eq_count
);
6514 /* Create Mailbox Command Queue */
6515 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
6516 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
6518 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
6519 phba
->sli4_hba
.mq_ecount
);
6521 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6522 "0505 Failed allocate slow-path MQ\n");
6523 goto out_free_fcp_cq
;
6525 phba
->sli4_hba
.mbx_wq
= qdesc
;
6528 * Create all the Work Queues (WQs)
6530 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
6531 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
6533 /* Create slow-path ELS Work Queue */
6534 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
6535 phba
->sli4_hba
.wq_ecount
);
6537 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6538 "0504 Failed allocate slow-path ELS WQ\n");
6539 goto out_free_mbx_wq
;
6541 phba
->sli4_hba
.els_wq
= qdesc
;
6543 /* Create fast-path FCP Work Queue(s) */
6544 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
6545 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
6546 if (!phba
->sli4_hba
.fcp_wq
) {
6547 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6548 "2578 Failed allocate memory for fast-path "
6549 "WQ record array\n");
6550 goto out_free_els_wq
;
6552 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6553 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
6554 phba
->sli4_hba
.wq_ecount
);
6556 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6557 "0503 Failed allocate fast-path FCP "
6558 "WQ (%d)\n", fcp_wqidx
);
6559 goto out_free_fcp_wq
;
6561 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
6565 * Create Receive Queue (RQ)
6567 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
6568 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
6570 /* Create Receive Queue for header */
6571 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
6572 phba
->sli4_hba
.rq_ecount
);
6574 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6575 "0506 Failed allocate receive HRQ\n");
6576 goto out_free_fcp_wq
;
6578 phba
->sli4_hba
.hdr_rq
= qdesc
;
6580 /* Create Receive Queue for data */
6581 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
6582 phba
->sli4_hba
.rq_ecount
);
6584 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6585 "0507 Failed allocate receive DRQ\n");
6586 goto out_free_hdr_rq
;
6588 phba
->sli4_hba
.dat_rq
= qdesc
;
6593 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
6594 phba
->sli4_hba
.hdr_rq
= NULL
;
6596 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
6597 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6598 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
6600 kfree(phba
->sli4_hba
.fcp_wq
);
6601 phba
->sli4_hba
.fcp_wq
= NULL
;
6603 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
6604 phba
->sli4_hba
.els_wq
= NULL
;
6606 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
6607 phba
->sli4_hba
.mbx_wq
= NULL
;
6609 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
6610 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6611 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
6613 kfree(phba
->sli4_hba
.fcp_cq
);
6614 phba
->sli4_hba
.fcp_cq
= NULL
;
6616 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
6617 phba
->sli4_hba
.els_cq
= NULL
;
6619 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
6620 phba
->sli4_hba
.mbx_cq
= NULL
;
6622 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
6623 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6624 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
6626 kfree(phba
->sli4_hba
.fp_eq
);
6627 phba
->sli4_hba
.fp_eq
= NULL
;
6629 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
6630 phba
->sli4_hba
.sp_eq
= NULL
;
6636 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6637 * @phba: pointer to lpfc hba data structure.
6639 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6644 * -ENOMEM - No available memory
6645 * -EIO - The mailbox failed to complete successfully.
6648 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
6652 /* Release mailbox command work queue */
6653 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
6654 phba
->sli4_hba
.mbx_wq
= NULL
;
6656 /* Release ELS work queue */
6657 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
6658 phba
->sli4_hba
.els_wq
= NULL
;
6660 /* Release FCP work queue */
6661 if (phba
->sli4_hba
.fcp_wq
!= NULL
)
6662 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
;
6664 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6665 kfree(phba
->sli4_hba
.fcp_wq
);
6666 phba
->sli4_hba
.fcp_wq
= NULL
;
6668 /* Release unsolicited receive queue */
6669 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
6670 phba
->sli4_hba
.hdr_rq
= NULL
;
6671 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
6672 phba
->sli4_hba
.dat_rq
= NULL
;
6674 /* Release ELS complete queue */
6675 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
6676 phba
->sli4_hba
.els_cq
= NULL
;
6678 /* Release mailbox command complete queue */
6679 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
6680 phba
->sli4_hba
.mbx_cq
= NULL
;
6682 /* Release FCP response complete queue */
6684 if (phba
->sli4_hba
.fcp_cq
!= NULL
)
6686 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6687 while (++fcp_qidx
< phba
->cfg_fcp_eq_count
);
6688 kfree(phba
->sli4_hba
.fcp_cq
);
6689 phba
->sli4_hba
.fcp_cq
= NULL
;
6691 /* Release fast-path event queue */
6692 if (phba
->sli4_hba
.fp_eq
!= NULL
)
6693 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
;
6695 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6696 kfree(phba
->sli4_hba
.fp_eq
);
6697 phba
->sli4_hba
.fp_eq
= NULL
;
6699 /* Release slow-path event queue */
6700 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
6701 phba
->sli4_hba
.sp_eq
= NULL
;
6707 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6708 * @phba: pointer to lpfc hba data structure.
6710 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6715 * -ENOMEM - No available memory
6716 * -EIO - The mailbox failed to complete successfully.
6719 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
6722 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
6723 int fcp_cq_index
= 0;
6726 * Set up Event Queues (EQs)
6729 /* Set up slow-path event queue */
6730 if (!phba
->sli4_hba
.sp_eq
) {
6731 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6732 "0520 Slow-path EQ not allocated\n");
6735 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
6738 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6739 "0521 Failed setup of slow-path EQ: "
6743 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6744 "2583 Slow-path EQ setup: queue-id=%d\n",
6745 phba
->sli4_hba
.sp_eq
->queue_id
);
6747 /* Set up fast-path event queue */
6748 if (phba
->cfg_fcp_eq_count
&& !phba
->sli4_hba
.fp_eq
) {
6749 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6750 "3147 Fast-path EQs not allocated\n");
6752 goto out_destroy_sp_eq
;
6754 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
6755 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
6756 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6757 "0522 Fast-path EQ (%d) not "
6758 "allocated\n", fcp_eqidx
);
6760 goto out_destroy_fp_eq
;
6762 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
6763 phba
->cfg_fcp_imax
);
6765 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6766 "0523 Failed setup of fast-path EQ "
6767 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
6768 goto out_destroy_fp_eq
;
6770 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6771 "2584 Fast-path EQ setup: "
6772 "queue[%d]-id=%d\n", fcp_eqidx
,
6773 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
6777 * Set up Complete Queues (CQs)
6780 /* Set up slow-path MBOX Complete Queue as the first CQ */
6781 if (!phba
->sli4_hba
.mbx_cq
) {
6782 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6783 "0528 Mailbox CQ not allocated\n");
6785 goto out_destroy_fp_eq
;
6787 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
6788 LPFC_MCQ
, LPFC_MBOX
);
6790 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6791 "0529 Failed setup of slow-path mailbox CQ: "
6793 goto out_destroy_fp_eq
;
6795 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6796 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6797 phba
->sli4_hba
.mbx_cq
->queue_id
,
6798 phba
->sli4_hba
.sp_eq
->queue_id
);
6800 /* Set up slow-path ELS Complete Queue */
6801 if (!phba
->sli4_hba
.els_cq
) {
6802 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6803 "0530 ELS CQ not allocated\n");
6805 goto out_destroy_mbx_cq
;
6807 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
6808 LPFC_WCQ
, LPFC_ELS
);
6810 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6811 "0531 Failed setup of slow-path ELS CQ: "
6813 goto out_destroy_mbx_cq
;
6815 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6816 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6817 phba
->sli4_hba
.els_cq
->queue_id
,
6818 phba
->sli4_hba
.sp_eq
->queue_id
);
6820 /* Set up fast-path FCP Response Complete Queue */
6821 if (!phba
->sli4_hba
.fcp_cq
) {
6822 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6823 "3148 Fast-path FCP CQ array not "
6826 goto out_destroy_els_cq
;
6830 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6831 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6832 "0526 Fast-path FCP CQ (%d) not "
6833 "allocated\n", fcp_cqidx
);
6835 goto out_destroy_fcp_cq
;
6837 if (phba
->cfg_fcp_eq_count
)
6838 rc
= lpfc_cq_create(phba
,
6839 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6840 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6841 LPFC_WCQ
, LPFC_FCP
);
6843 rc
= lpfc_cq_create(phba
,
6844 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6845 phba
->sli4_hba
.sp_eq
,
6846 LPFC_WCQ
, LPFC_FCP
);
6848 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6849 "0527 Failed setup of fast-path FCP "
6850 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6851 goto out_destroy_fcp_cq
;
6853 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6854 "2588 FCP CQ setup: cq[%d]-id=%d, "
6855 "parent %seq[%d]-id=%d\n",
6857 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6858 (phba
->cfg_fcp_eq_count
) ? "" : "sp_",
6860 (phba
->cfg_fcp_eq_count
) ?
6861 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
:
6862 phba
->sli4_hba
.sp_eq
->queue_id
);
6863 } while (++fcp_cqidx
< phba
->cfg_fcp_eq_count
);
6866 * Set up all the Work Queues (WQs)
6869 /* Set up Mailbox Command Queue */
6870 if (!phba
->sli4_hba
.mbx_wq
) {
6871 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6872 "0538 Slow-path MQ not allocated\n");
6874 goto out_destroy_fcp_cq
;
6876 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6877 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6879 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6880 "0539 Failed setup of slow-path MQ: "
6882 goto out_destroy_fcp_cq
;
6884 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6885 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6886 phba
->sli4_hba
.mbx_wq
->queue_id
,
6887 phba
->sli4_hba
.mbx_cq
->queue_id
);
6889 /* Set up slow-path ELS Work Queue */
6890 if (!phba
->sli4_hba
.els_wq
) {
6891 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6892 "0536 Slow-path ELS WQ not allocated\n");
6894 goto out_destroy_mbx_wq
;
6896 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6897 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6899 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6900 "0537 Failed setup of slow-path ELS WQ: "
6902 goto out_destroy_mbx_wq
;
6904 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6905 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6906 phba
->sli4_hba
.els_wq
->queue_id
,
6907 phba
->sli4_hba
.els_cq
->queue_id
);
6909 /* Set up fast-path FCP Work Queue */
6910 if (!phba
->sli4_hba
.fcp_wq
) {
6911 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6912 "3149 Fast-path FCP WQ array not "
6915 goto out_destroy_els_wq
;
6917 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6918 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6919 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6920 "0534 Fast-path FCP WQ (%d) not "
6921 "allocated\n", fcp_wqidx
);
6923 goto out_destroy_fcp_wq
;
6925 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6926 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6929 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6930 "0535 Failed setup of fast-path FCP "
6931 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6932 goto out_destroy_fcp_wq
;
6934 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6935 "2591 FCP WQ setup: wq[%d]-id=%d, "
6936 "parent cq[%d]-id=%d\n",
6938 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6940 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6941 /* Round robin FCP Work Queue's Completion Queue assignment */
6942 if (phba
->cfg_fcp_eq_count
)
6943 fcp_cq_index
= ((fcp_cq_index
+ 1) %
6944 phba
->cfg_fcp_eq_count
);
6948 * Create Receive Queue (RQ)
6950 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6951 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6952 "0540 Receive Queue not allocated\n");
6954 goto out_destroy_fcp_wq
;
6957 lpfc_rq_adjust_repost(phba
, phba
->sli4_hba
.hdr_rq
, LPFC_ELS_HBQ
);
6958 lpfc_rq_adjust_repost(phba
, phba
->sli4_hba
.dat_rq
, LPFC_ELS_HBQ
);
6960 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6961 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6963 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6964 "0541 Failed setup of Receive Queue: "
6966 goto out_destroy_fcp_wq
;
6969 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6970 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6971 "parent cq-id=%d\n",
6972 phba
->sli4_hba
.hdr_rq
->queue_id
,
6973 phba
->sli4_hba
.dat_rq
->queue_id
,
6974 phba
->sli4_hba
.els_cq
->queue_id
);
6978 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6979 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6981 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6983 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6985 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6986 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6988 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6990 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6992 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6993 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6995 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
7001 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7002 * @phba: pointer to lpfc hba data structure.
7004 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7009 * -ENOMEM - No available memory
7010 * -EIO - The mailbox failed to complete successfully.
7013 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
7017 /* Unset mailbox command work queue */
7018 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
7019 /* Unset ELS work queue */
7020 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
7021 /* Unset unsolicited receive queue */
7022 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
7023 /* Unset FCP work queue */
7024 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
7025 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
7026 /* Unset mailbox command complete queue */
7027 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
7028 /* Unset ELS complete queue */
7029 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
7030 /* Unset FCP response complete queue */
7031 if (phba
->sli4_hba
.fcp_cq
) {
7034 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
7035 } while (++fcp_qidx
< phba
->cfg_fcp_eq_count
);
7037 /* Unset fast-path event queue */
7038 if (phba
->sli4_hba
.fp_eq
) {
7039 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
;
7041 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
7043 /* Unset slow-path event queue */
7044 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
7048 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7049 * @phba: pointer to lpfc hba data structure.
7051 * This routine is invoked to allocate and set up a pool of completion queue
7052 * events. The body of the completion queue event is a completion queue entry
7053 * CQE. For now, this pool is used for the interrupt service routine to queue
7054 * the following HBA completion queue events for the worker thread to process:
7055 * - Mailbox asynchronous events
7056 * - Receive queue completion unsolicited events
7057 * Later, this can be used for all the slow-path events.
7061 * -ENOMEM - No available memory
7064 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
7066 struct lpfc_cq_event
*cq_event
;
7069 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
7070 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
7072 goto out_pool_create_fail
;
7073 list_add_tail(&cq_event
->list
,
7074 &phba
->sli4_hba
.sp_cqe_event_pool
);
7078 out_pool_create_fail
:
7079 lpfc_sli4_cq_event_pool_destroy(phba
);
7084 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7085 * @phba: pointer to lpfc hba data structure.
7087 * This routine is invoked to free the pool of completion queue events at
7088 * driver unload time. Note that, it is the responsibility of the driver
7089 * cleanup routine to free all the outstanding completion-queue events
7090 * allocated from this pool back into the pool before invoking this routine
7091 * to destroy the pool.
7094 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
7096 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
7098 list_for_each_entry_safe(cq_event
, next_cq_event
,
7099 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
7100 list_del(&cq_event
->list
);
7106 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7107 * @phba: pointer to lpfc hba data structure.
7109 * This routine is the lock free version of the API invoked to allocate a
7110 * completion-queue event from the free pool.
7112 * Return: Pointer to the newly allocated completion-queue event if successful
7115 struct lpfc_cq_event
*
7116 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
7118 struct lpfc_cq_event
*cq_event
= NULL
;
7120 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
7121 struct lpfc_cq_event
, list
);
7126 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7127 * @phba: pointer to lpfc hba data structure.
7129 * This routine is the lock version of the API invoked to allocate a
7130 * completion-queue event from the free pool.
7132 * Return: Pointer to the newly allocated completion-queue event if successful
7135 struct lpfc_cq_event
*
7136 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
7138 struct lpfc_cq_event
*cq_event
;
7139 unsigned long iflags
;
7141 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7142 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
7143 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7148 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7149 * @phba: pointer to lpfc hba data structure.
7150 * @cq_event: pointer to the completion queue event to be freed.
7152 * This routine is the lock free version of the API invoked to release a
7153 * completion-queue event back into the free pool.
7156 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
7157 struct lpfc_cq_event
*cq_event
)
7159 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
7163 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7164 * @phba: pointer to lpfc hba data structure.
7165 * @cq_event: pointer to the completion queue event to be freed.
7167 * This routine is the lock version of the API invoked to release a
7168 * completion-queue event back into the free pool.
7171 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
7172 struct lpfc_cq_event
*cq_event
)
7174 unsigned long iflags
;
7175 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7176 __lpfc_sli4_cq_event_release(phba
, cq_event
);
7177 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7181 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7182 * @phba: pointer to lpfc hba data structure.
7184 * This routine is to free all the pending completion-queue events to the
7185 * back into the free pool for device reset.
7188 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
7191 struct lpfc_cq_event
*cqe
;
7192 unsigned long iflags
;
7194 /* Retrieve all the pending WCQEs from pending WCQE lists */
7195 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7196 /* Pending FCP XRI abort events */
7197 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
7199 /* Pending ELS XRI abort events */
7200 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
7202 /* Pending asynnc events */
7203 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
7205 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7207 while (!list_empty(&cqelist
)) {
7208 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
7209 lpfc_sli4_cq_event_release(phba
, cqe
);
7214 * lpfc_pci_function_reset - Reset pci function.
7215 * @phba: pointer to lpfc hba data structure.
7217 * This routine is invoked to request a PCI function reset. It will destroys
7218 * all resources assigned to the PCI function which originates this request.
7222 * -ENOMEM - No available memory
7223 * -EIO - The mailbox failed to complete successfully.
7226 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
7228 LPFC_MBOXQ_t
*mboxq
;
7229 uint32_t rc
= 0, if_type
;
7230 uint32_t shdr_status
, shdr_add_status
;
7231 uint32_t rdy_chk
, num_resets
= 0, reset_again
= 0;
7232 union lpfc_sli4_cfg_shdr
*shdr
;
7233 struct lpfc_register reg_data
;
7235 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
7237 case LPFC_SLI_INTF_IF_TYPE_0
:
7238 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
7241 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7242 "0494 Unable to allocate memory for "
7243 "issuing SLI_FUNCTION_RESET mailbox "
7248 /* Setup PCI function reset mailbox-ioctl command */
7249 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
7250 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
7251 LPFC_SLI4_MBX_EMBED
);
7252 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7253 shdr
= (union lpfc_sli4_cfg_shdr
*)
7254 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
7255 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
7256 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
7258 if (rc
!= MBX_TIMEOUT
)
7259 mempool_free(mboxq
, phba
->mbox_mem_pool
);
7260 if (shdr_status
|| shdr_add_status
|| rc
) {
7261 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7262 "0495 SLI_FUNCTION_RESET mailbox "
7263 "failed with status x%x add_status x%x,"
7264 " mbx status x%x\n",
7265 shdr_status
, shdr_add_status
, rc
);
7269 case LPFC_SLI_INTF_IF_TYPE_2
:
7270 for (num_resets
= 0;
7271 num_resets
< MAX_IF_TYPE_2_RESETS
;
7274 bf_set(lpfc_sliport_ctrl_end
, ®_data
,
7275 LPFC_SLIPORT_LITTLE_ENDIAN
);
7276 bf_set(lpfc_sliport_ctrl_ip
, ®_data
,
7277 LPFC_SLIPORT_INIT_PORT
);
7278 writel(reg_data
.word0
, phba
->sli4_hba
.u
.if_type2
.
7282 * Poll the Port Status Register and wait for RDY for
7283 * up to 10 seconds. If the port doesn't respond, treat
7284 * it as an error. If the port responds with RN, start
7287 for (rdy_chk
= 0; rdy_chk
< 1000; rdy_chk
++) {
7289 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.
7290 STATUSregaddr
, ®_data
.word0
)) {
7294 if (bf_get(lpfc_sliport_status_rn
, ®_data
))
7296 if (bf_get(lpfc_sliport_status_rdy
, ®_data
))
7301 * If the port responds to the init request with
7302 * reset needed, delay for a bit and restart the loop.
7304 if (reset_again
&& (rdy_chk
< 1000)) {
7310 /* Detect any port errors. */
7311 if ((bf_get(lpfc_sliport_status_err
, ®_data
)) ||
7312 (rdy_chk
>= 1000)) {
7313 phba
->work_status
[0] = readl(
7314 phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
7315 phba
->work_status
[1] = readl(
7316 phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
7317 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7318 "2890 Port Error Detected "
7319 "during Port Reset: "
7320 "port status reg 0x%x, "
7321 "error 1=0x%x, error 2=0x%x\n",
7323 phba
->work_status
[0],
7324 phba
->work_status
[1]);
7329 * Terminate the outer loop provided the Port indicated
7330 * ready within 10 seconds.
7335 /* delay driver action following IF_TYPE_2 function reset */
7338 case LPFC_SLI_INTF_IF_TYPE_1
:
7344 /* Catch the not-ready port failure after a port reset. */
7345 if (num_resets
>= MAX_IF_TYPE_2_RESETS
)
7352 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7353 * @phba: pointer to lpfc hba data structure.
7354 * @cnt: number of nop mailbox commands to send.
7356 * This routine is invoked to send a number @cnt of NOP mailbox command and
7357 * wait for each command to complete.
7359 * Return: the number of NOP mailbox command completed.
7362 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
7364 LPFC_MBOXQ_t
*mboxq
;
7365 int length
, cmdsent
;
7368 uint32_t shdr_status
, shdr_add_status
;
7369 union lpfc_sli4_cfg_shdr
*shdr
;
7372 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7373 "2518 Requested to send 0 NOP mailbox cmd\n");
7377 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7379 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7380 "2519 Unable to allocate memory for issuing "
7381 "NOP mailbox command\n");
7385 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7386 length
= (sizeof(struct lpfc_mbx_nop
) -
7387 sizeof(struct lpfc_sli4_cfg_mhdr
));
7388 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
7389 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
7391 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
7392 if (!phba
->sli4_hba
.intr_enable
)
7393 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7395 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
7396 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7398 if (rc
== MBX_TIMEOUT
)
7400 /* Check return status */
7401 shdr
= (union lpfc_sli4_cfg_shdr
*)
7402 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
7403 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
7404 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
7406 if (shdr_status
|| shdr_add_status
|| rc
) {
7407 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7408 "2520 NOP mailbox command failed "
7409 "status x%x add_status x%x mbx "
7410 "status x%x\n", shdr_status
,
7411 shdr_add_status
, rc
);
7416 if (rc
!= MBX_TIMEOUT
)
7417 mempool_free(mboxq
, phba
->mbox_mem_pool
);
7423 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7424 * @phba: pointer to lpfc hba data structure.
7426 * This routine is invoked to set up the PCI device memory space for device
7427 * with SLI-4 interface spec.
7431 * other values - error
7434 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
7436 struct pci_dev
*pdev
;
7437 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
7438 int error
= -ENODEV
;
7441 /* Obtain PCI device reference */
7445 pdev
= phba
->pcidev
;
7447 /* Set the device DMA mask size */
7448 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
7449 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
7450 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
7451 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
7457 * The BARs and register set definitions and offset locations are
7458 * dependent on the if_type.
7460 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
,
7461 &phba
->sli4_hba
.sli_intf
.word0
)) {
7465 /* There is no SLI3 failback for SLI4 devices. */
7466 if (bf_get(lpfc_sli_intf_valid
, &phba
->sli4_hba
.sli_intf
) !=
7467 LPFC_SLI_INTF_VALID
) {
7468 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7469 "2894 SLI_INTF reg contents invalid "
7470 "sli_intf reg 0x%x\n",
7471 phba
->sli4_hba
.sli_intf
.word0
);
7475 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
7477 * Get the bus address of SLI4 device Bar regions and the
7478 * number of bytes required by each mapping. The mapping of the
7479 * particular PCI BARs regions is dependent on the type of
7482 if (pci_resource_start(pdev
, 0)) {
7483 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
7484 bar0map_len
= pci_resource_len(pdev
, 0);
7487 * Map SLI4 PCI Config Space Register base to a kernel virtual
7490 phba
->sli4_hba
.conf_regs_memmap_p
=
7491 ioremap(phba
->pci_bar0_map
, bar0map_len
);
7492 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
7493 dev_printk(KERN_ERR
, &pdev
->dev
,
7494 "ioremap failed for SLI4 PCI config "
7498 /* Set up BAR0 PCI config space register memory map */
7499 lpfc_sli4_bar0_register_memmap(phba
, if_type
);
7501 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
7502 bar0map_len
= pci_resource_len(pdev
, 1);
7503 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
7504 dev_printk(KERN_ERR
, &pdev
->dev
,
7505 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7508 phba
->sli4_hba
.conf_regs_memmap_p
=
7509 ioremap(phba
->pci_bar0_map
, bar0map_len
);
7510 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
7511 dev_printk(KERN_ERR
, &pdev
->dev
,
7512 "ioremap failed for SLI4 PCI config "
7516 lpfc_sli4_bar0_register_memmap(phba
, if_type
);
7519 if ((if_type
== LPFC_SLI_INTF_IF_TYPE_0
) &&
7520 (pci_resource_start(pdev
, 2))) {
7522 * Map SLI4 if type 0 HBA Control Register base to a kernel
7523 * virtual address and setup the registers.
7525 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
7526 bar1map_len
= pci_resource_len(pdev
, 2);
7527 phba
->sli4_hba
.ctrl_regs_memmap_p
=
7528 ioremap(phba
->pci_bar1_map
, bar1map_len
);
7529 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
7530 dev_printk(KERN_ERR
, &pdev
->dev
,
7531 "ioremap failed for SLI4 HBA control registers.\n");
7532 goto out_iounmap_conf
;
7534 lpfc_sli4_bar1_register_memmap(phba
);
7537 if ((if_type
== LPFC_SLI_INTF_IF_TYPE_0
) &&
7538 (pci_resource_start(pdev
, 4))) {
7540 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7541 * virtual address and setup the registers.
7543 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
7544 bar2map_len
= pci_resource_len(pdev
, 4);
7545 phba
->sli4_hba
.drbl_regs_memmap_p
=
7546 ioremap(phba
->pci_bar2_map
, bar2map_len
);
7547 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
7548 dev_printk(KERN_ERR
, &pdev
->dev
,
7549 "ioremap failed for SLI4 HBA doorbell registers.\n");
7550 goto out_iounmap_ctrl
;
7552 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
7554 goto out_iounmap_all
;
7560 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
7562 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
7564 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7570 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7571 * @phba: pointer to lpfc hba data structure.
7573 * This routine is invoked to unset the PCI device memory space for device
7574 * with SLI-4 interface spec.
7577 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
7580 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
7583 case LPFC_SLI_INTF_IF_TYPE_0
:
7584 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
7585 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
7586 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7588 case LPFC_SLI_INTF_IF_TYPE_2
:
7589 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7591 case LPFC_SLI_INTF_IF_TYPE_1
:
7593 dev_printk(KERN_ERR
, &phba
->pcidev
->dev
,
7594 "FATAL - unsupported SLI4 interface type - %d\n",
7601 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7602 * @phba: pointer to lpfc hba data structure.
7604 * This routine is invoked to enable the MSI-X interrupt vectors to device
7605 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7606 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7607 * invoked, enables either all or nothing, depending on the current
7608 * availability of PCI vector resources. The device driver is responsible
7609 * for calling the individual request_irq() to register each MSI-X vector
7610 * with a interrupt handler, which is done in this function. Note that
7611 * later when device is unloading, the driver should always call free_irq()
7612 * on all MSI-X vectors it has done request_irq() on before calling
7613 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7614 * will be left with MSI-X enabled and leaks its vectors.
7618 * other values - error
7621 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
7626 /* Set up MSI-X multi-message vectors */
7627 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7628 phba
->msix_entries
[i
].entry
= i
;
7630 /* Configure MSI-X capability structure */
7631 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
7632 ARRAY_SIZE(phba
->msix_entries
));
7634 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7635 "0420 PCI enable MSI-X failed (%d)\n", rc
);
7638 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7639 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7640 "0477 MSI-X entry[%d]: vector=x%x "
7642 phba
->msix_entries
[i
].vector
,
7643 phba
->msix_entries
[i
].entry
);
7645 * Assign MSI-X vectors to interrupt handlers
7648 /* vector-0 is associated to slow-path handler */
7649 rc
= request_irq(phba
->msix_entries
[0].vector
,
7650 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
7651 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7653 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7654 "0421 MSI-X slow-path request_irq failed "
7659 /* vector-1 is associated to fast-path handler */
7660 rc
= request_irq(phba
->msix_entries
[1].vector
,
7661 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
7662 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
7665 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7666 "0429 MSI-X fast-path request_irq failed "
7672 * Configure HBA MSI-X attention conditions to messages
7674 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7678 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7679 "0474 Unable to allocate memory for issuing "
7680 "MBOX_CONFIG_MSI command\n");
7683 rc
= lpfc_config_msi(phba
, pmb
);
7686 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
7687 if (rc
!= MBX_SUCCESS
) {
7688 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
7689 "0351 Config MSI mailbox command failed, "
7690 "mbxCmd x%x, mbxStatus x%x\n",
7691 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
7695 /* Free memory allocated for mailbox command */
7696 mempool_free(pmb
, phba
->mbox_mem_pool
);
7700 /* Free memory allocated for mailbox command */
7701 mempool_free(pmb
, phba
->mbox_mem_pool
);
7704 /* free the irq already requested */
7705 free_irq(phba
->msix_entries
[1].vector
, phba
);
7708 /* free the irq already requested */
7709 free_irq(phba
->msix_entries
[0].vector
, phba
);
7712 /* Unconfigure MSI-X capability structure */
7713 pci_disable_msix(phba
->pcidev
);
7718 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7719 * @phba: pointer to lpfc hba data structure.
7721 * This routine is invoked to release the MSI-X vectors and then disable the
7722 * MSI-X interrupt mode to device with SLI-3 interface spec.
7725 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
7729 /* Free up MSI-X multi-message vectors */
7730 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7731 free_irq(phba
->msix_entries
[i
].vector
, phba
);
7733 pci_disable_msix(phba
->pcidev
);
7739 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7740 * @phba: pointer to lpfc hba data structure.
7742 * This routine is invoked to enable the MSI interrupt mode to device with
7743 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7744 * enable the MSI vector. The device driver is responsible for calling the
7745 * request_irq() to register MSI vector with a interrupt the handler, which
7746 * is done in this function.
7750 * other values - error
7753 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
7757 rc
= pci_enable_msi(phba
->pcidev
);
7759 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7760 "0462 PCI enable MSI mode success.\n");
7762 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7763 "0471 PCI enable MSI mode failed (%d)\n", rc
);
7767 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
7768 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7770 pci_disable_msi(phba
->pcidev
);
7771 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7772 "0478 MSI request_irq failed (%d)\n", rc
);
7778 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7779 * @phba: pointer to lpfc hba data structure.
7781 * This routine is invoked to disable the MSI interrupt mode to device with
7782 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7783 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7784 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7788 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
7790 free_irq(phba
->pcidev
->irq
, phba
);
7791 pci_disable_msi(phba
->pcidev
);
7796 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7797 * @phba: pointer to lpfc hba data structure.
7799 * This routine is invoked to enable device interrupt and associate driver's
7800 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7801 * spec. Depends on the interrupt mode configured to the driver, the driver
7802 * will try to fallback from the configured interrupt mode to an interrupt
7803 * mode which is supported by the platform, kernel, and device in the order
7805 * MSI-X -> MSI -> IRQ.
7809 * other values - error
7812 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7814 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7817 if (cfg_mode
== 2) {
7818 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7819 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
7821 /* Now, try to enable MSI-X interrupt mode */
7822 retval
= lpfc_sli_enable_msix(phba
);
7824 /* Indicate initialization to MSI-X mode */
7825 phba
->intr_type
= MSIX
;
7831 /* Fallback to MSI if MSI-X initialization failed */
7832 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7833 retval
= lpfc_sli_enable_msi(phba
);
7835 /* Indicate initialization to MSI mode */
7836 phba
->intr_type
= MSI
;
7841 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7842 if (phba
->intr_type
== NONE
) {
7843 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
7844 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7846 /* Indicate initialization to INTx mode */
7847 phba
->intr_type
= INTx
;
7855 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7856 * @phba: pointer to lpfc hba data structure.
7858 * This routine is invoked to disable device interrupt and disassociate the
7859 * driver's interrupt handler(s) from interrupt vector(s) to device with
7860 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7861 * release the interrupt vector(s) for the message signaled interrupt.
7864 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
7866 /* Disable the currently initialized interrupt mode */
7867 if (phba
->intr_type
== MSIX
)
7868 lpfc_sli_disable_msix(phba
);
7869 else if (phba
->intr_type
== MSI
)
7870 lpfc_sli_disable_msi(phba
);
7871 else if (phba
->intr_type
== INTx
)
7872 free_irq(phba
->pcidev
->irq
, phba
);
7874 /* Reset interrupt management states */
7875 phba
->intr_type
= NONE
;
7876 phba
->sli
.slistat
.sli_intr
= 0;
7882 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7883 * @phba: pointer to lpfc hba data structure.
7885 * This routine is invoked to enable the MSI-X interrupt vectors to device
7886 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7887 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7888 * enables either all or nothing, depending on the current availability of
7889 * PCI vector resources. The device driver is responsible for calling the
7890 * individual request_irq() to register each MSI-X vector with a interrupt
7891 * handler, which is done in this function. Note that later when device is
7892 * unloading, the driver should always call free_irq() on all MSI-X vectors
7893 * it has done request_irq() on before calling pci_disable_msix(). Failure
7894 * to do so results in a BUG_ON() and a device will be left with MSI-X
7895 * enabled and leaks its vectors.
7899 * other values - error
7902 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
7904 int vectors
, rc
, index
;
7906 /* Set up MSI-X multi-message vectors */
7907 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7908 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
7910 /* Configure MSI-X capability structure */
7911 vectors
= phba
->sli4_hba
.cfg_eqn
;
7912 enable_msix_vectors
:
7913 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
7917 goto enable_msix_vectors
;
7919 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7920 "0484 PCI enable MSI-X failed (%d)\n", rc
);
7924 /* Log MSI-X vector assignment */
7925 for (index
= 0; index
< vectors
; index
++)
7926 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7927 "0489 MSI-X entry[%d]: vector=x%x "
7928 "message=%d\n", index
,
7929 phba
->sli4_hba
.msix_entries
[index
].vector
,
7930 phba
->sli4_hba
.msix_entries
[index
].entry
);
7932 * Assign MSI-X vectors to interrupt handlers
7935 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
7936 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
7937 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7939 /* All Interrupts need to be handled by one EQ */
7940 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
7941 &lpfc_sli4_intr_handler
, IRQF_SHARED
,
7942 LPFC_DRIVER_NAME
, phba
);
7944 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7945 "0485 MSI-X slow-path request_irq failed "
7950 /* The rest of the vector(s) are associated to fast-path handler(s) */
7951 for (index
= 1; index
< vectors
; index
++) {
7952 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
7953 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
7954 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7955 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
7956 LPFC_FP_DRIVER_HANDLER_NAME
,
7957 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7959 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7960 "0486 MSI-X fast-path (%d) "
7961 "request_irq failed (%d)\n", index
, rc
);
7965 phba
->sli4_hba
.msix_vec_nr
= vectors
;
7970 /* free the irq already requested */
7971 for (--index
; index
>= 1; index
--)
7972 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7973 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7975 /* free the irq already requested */
7976 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7979 /* Unconfigure MSI-X capability structure */
7980 pci_disable_msix(phba
->pcidev
);
7985 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7986 * @phba: pointer to lpfc hba data structure.
7988 * This routine is invoked to release the MSI-X vectors and then disable the
7989 * MSI-X interrupt mode to device with SLI-4 interface spec.
7992 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7996 /* Free up MSI-X multi-message vectors */
7997 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7999 for (index
= 1; index
< phba
->sli4_hba
.msix_vec_nr
; index
++)
8000 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
8001 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
8004 pci_disable_msix(phba
->pcidev
);
8010 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8011 * @phba: pointer to lpfc hba data structure.
8013 * This routine is invoked to enable the MSI interrupt mode to device with
8014 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8015 * to enable the MSI vector. The device driver is responsible for calling
8016 * the request_irq() to register MSI vector with a interrupt the handler,
8017 * which is done in this function.
8021 * other values - error
8024 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
8028 rc
= pci_enable_msi(phba
->pcidev
);
8030 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8031 "0487 PCI enable MSI mode success.\n");
8033 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8034 "0488 PCI enable MSI mode failed (%d)\n", rc
);
8038 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
8039 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
8041 pci_disable_msi(phba
->pcidev
);
8042 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
8043 "0490 MSI request_irq failed (%d)\n", rc
);
8047 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
8048 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
8049 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
8056 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8057 * @phba: pointer to lpfc hba data structure.
8059 * This routine is invoked to disable the MSI interrupt mode to device with
8060 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8061 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8062 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8066 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
8068 free_irq(phba
->pcidev
->irq
, phba
);
8069 pci_disable_msi(phba
->pcidev
);
8074 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8075 * @phba: pointer to lpfc hba data structure.
8077 * This routine is invoked to enable device interrupt and associate driver's
8078 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8079 * interface spec. Depends on the interrupt mode configured to the driver,
8080 * the driver will try to fallback from the configured interrupt mode to an
8081 * interrupt mode which is supported by the platform, kernel, and device in
8083 * MSI-X -> MSI -> IRQ.
8087 * other values - error
8090 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
8092 uint32_t intr_mode
= LPFC_INTR_ERROR
;
8095 if (cfg_mode
== 2) {
8096 /* Preparation before conf_msi mbox cmd */
8099 /* Now, try to enable MSI-X interrupt mode */
8100 retval
= lpfc_sli4_enable_msix(phba
);
8102 /* Indicate initialization to MSI-X mode */
8103 phba
->intr_type
= MSIX
;
8109 /* Fallback to MSI if MSI-X initialization failed */
8110 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
8111 retval
= lpfc_sli4_enable_msi(phba
);
8113 /* Indicate initialization to MSI mode */
8114 phba
->intr_type
= MSI
;
8119 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8120 if (phba
->intr_type
== NONE
) {
8121 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
8122 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
8124 /* Indicate initialization to INTx mode */
8125 phba
->intr_type
= INTx
;
8127 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
8129 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
8130 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
8138 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8139 * @phba: pointer to lpfc hba data structure.
8141 * This routine is invoked to disable device interrupt and disassociate
8142 * the driver's interrupt handler(s) from interrupt vector(s) to device
8143 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8144 * will release the interrupt vector(s) for the message signaled interrupt.
8147 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
8149 /* Disable the currently initialized interrupt mode */
8150 if (phba
->intr_type
== MSIX
)
8151 lpfc_sli4_disable_msix(phba
);
8152 else if (phba
->intr_type
== MSI
)
8153 lpfc_sli4_disable_msi(phba
);
8154 else if (phba
->intr_type
== INTx
)
8155 free_irq(phba
->pcidev
->irq
, phba
);
8157 /* Reset interrupt management states */
8158 phba
->intr_type
= NONE
;
8159 phba
->sli
.slistat
.sli_intr
= 0;
8165 * lpfc_unset_hba - Unset SLI3 hba device initialization
8166 * @phba: pointer to lpfc hba data structure.
8168 * This routine is invoked to unset the HBA device initialization steps to
8169 * a device with SLI-3 interface spec.
8172 lpfc_unset_hba(struct lpfc_hba
*phba
)
8174 struct lpfc_vport
*vport
= phba
->pport
;
8175 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8177 spin_lock_irq(shost
->host_lock
);
8178 vport
->load_flag
|= FC_UNLOADING
;
8179 spin_unlock_irq(shost
->host_lock
);
8181 lpfc_stop_hba_timers(phba
);
8183 phba
->pport
->work_port_events
= 0;
8185 lpfc_sli_hba_down(phba
);
8187 lpfc_sli_brdrestart(phba
);
8189 lpfc_sli_disable_intr(phba
);
8195 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8196 * @phba: pointer to lpfc hba data structure.
8198 * This routine is invoked to unset the HBA device initialization steps to
8199 * a device with SLI-4 interface spec.
8202 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
8204 struct lpfc_vport
*vport
= phba
->pport
;
8205 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8207 spin_lock_irq(shost
->host_lock
);
8208 vport
->load_flag
|= FC_UNLOADING
;
8209 spin_unlock_irq(shost
->host_lock
);
8211 phba
->pport
->work_port_events
= 0;
8213 /* Stop the SLI4 device port */
8214 lpfc_stop_port(phba
);
8216 lpfc_sli4_disable_intr(phba
);
8218 /* Reset SLI4 HBA FCoE function */
8219 lpfc_pci_function_reset(phba
);
8220 lpfc_sli4_queue_destroy(phba
);
8226 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8227 * @phba: Pointer to HBA context object.
8229 * This function is called in the SLI4 code path to wait for completion
8230 * of device's XRIs exchange busy. It will check the XRI exchange busy
8231 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8232 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8233 * I/Os every 30 seconds, log error message, and wait forever. Only when
8234 * all XRI exchange busy complete, the driver unload shall proceed with
8235 * invoking the function reset ioctl mailbox command to the CNA and the
8236 * the rest of the driver unload resource release.
8239 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba
*phba
)
8242 int fcp_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
8243 int els_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
8245 while (!fcp_xri_cmpl
|| !els_xri_cmpl
) {
8246 if (wait_time
> LPFC_XRI_EXCH_BUSY_WAIT_TMO
) {
8248 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8249 "2877 FCP XRI exchange busy "
8250 "wait time: %d seconds.\n",
8253 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8254 "2878 ELS XRI exchange busy "
8255 "wait time: %d seconds.\n",
8257 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2
);
8258 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T2
;
8260 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1
);
8261 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T1
;
8264 list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
8266 list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
8271 * lpfc_sli4_hba_unset - Unset the fcoe hba
8272 * @phba: Pointer to HBA context object.
8274 * This function is called in the SLI4 code path to reset the HBA's FCoE
8275 * function. The caller is not required to hold any lock. This routine
8276 * issues PCI function reset mailbox command to reset the FCoE function.
8277 * At the end of the function, it calls lpfc_hba_down_post function to
8278 * free any pending commands.
8281 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
8284 LPFC_MBOXQ_t
*mboxq
;
8285 struct pci_dev
*pdev
= phba
->pcidev
;
8287 lpfc_stop_hba_timers(phba
);
8288 phba
->sli4_hba
.intr_enable
= 0;
8291 * Gracefully wait out the potential current outstanding asynchronous
8295 /* First, block any pending async mailbox command from posted */
8296 spin_lock_irq(&phba
->hbalock
);
8297 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
8298 spin_unlock_irq(&phba
->hbalock
);
8299 /* Now, trying to wait it out if we can */
8300 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
8302 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
8305 /* Forcefully release the outstanding mailbox command if timed out */
8306 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
8307 spin_lock_irq(&phba
->hbalock
);
8308 mboxq
= phba
->sli
.mbox_active
;
8309 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
8310 __lpfc_mbox_cmpl_put(phba
, mboxq
);
8311 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
8312 phba
->sli
.mbox_active
= NULL
;
8313 spin_unlock_irq(&phba
->hbalock
);
8316 /* Abort all iocbs associated with the hba */
8317 lpfc_sli_hba_iocb_abort(phba
);
8319 /* Wait for completion of device XRI exchange busy */
8320 lpfc_sli4_xri_exchange_busy_wait(phba
);
8322 /* Disable PCI subsystem interrupt */
8323 lpfc_sli4_disable_intr(phba
);
8325 /* Disable SR-IOV if enabled */
8326 if (phba
->cfg_sriov_nr_virtfn
)
8327 pci_disable_sriov(pdev
);
8329 /* Stop kthread signal shall trigger work_done one more time */
8330 kthread_stop(phba
->worker_thread
);
8332 /* Reset SLI4 HBA FCoE function */
8333 lpfc_pci_function_reset(phba
);
8334 lpfc_sli4_queue_destroy(phba
);
8336 /* Stop the SLI4 device port */
8337 phba
->pport
->work_port_events
= 0;
8341 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8342 * @phba: Pointer to HBA context object.
8343 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8345 * This function is called in the SLI4 code path to read the port's
8346 * sli4 capabilities.
8348 * This function may be be called from any context that can block-wait
8349 * for the completion. The expectation is that this routine is called
8350 * typically from probe_one or from the online routine.
8353 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
8356 struct lpfc_mqe
*mqe
;
8357 struct lpfc_pc_sli4_params
*sli4_params
;
8361 mqe
= &mboxq
->u
.mqe
;
8363 /* Read the port's SLI4 Parameters port capabilities */
8364 lpfc_pc_sli4_params(mboxq
);
8365 if (!phba
->sli4_hba
.intr_enable
)
8366 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
8368 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
8369 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
8375 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
8376 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
8377 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
8378 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
8379 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
8380 &mqe
->un
.sli4_params
);
8381 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
8382 &mqe
->un
.sli4_params
);
8383 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
8384 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
8385 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
8386 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
8387 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
8388 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
8389 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
8390 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
8391 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
8392 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
8393 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
8394 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
8395 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
8396 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
8397 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
8398 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
8399 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
8400 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
8401 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
8402 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
8403 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
8405 /* Make sure that sge_supp_len can be handled by the driver */
8406 if (sli4_params
->sge_supp_len
> LPFC_MAX_SGE_SIZE
)
8407 sli4_params
->sge_supp_len
= LPFC_MAX_SGE_SIZE
;
8413 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8414 * @phba: Pointer to HBA context object.
8415 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8417 * This function is called in the SLI4 code path to read the port's
8418 * sli4 capabilities.
8420 * This function may be be called from any context that can block-wait
8421 * for the completion. The expectation is that this routine is called
8422 * typically from probe_one or from the online routine.
8425 lpfc_get_sli4_parameters(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
8428 struct lpfc_mqe
*mqe
= &mboxq
->u
.mqe
;
8429 struct lpfc_pc_sli4_params
*sli4_params
;
8432 struct lpfc_sli4_parameters
*mbx_sli4_parameters
;
8435 * By default, the driver assumes the SLI4 port requires RPI
8436 * header postings. The SLI4_PARAM response will correct this
8439 phba
->sli4_hba
.rpi_hdrs_in_use
= 1;
8441 /* Read the port's SLI4 Config Parameters */
8442 length
= (sizeof(struct lpfc_mbx_get_sli4_parameters
) -
8443 sizeof(struct lpfc_sli4_cfg_mhdr
));
8444 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
8445 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS
,
8446 length
, LPFC_SLI4_MBX_EMBED
);
8447 if (!phba
->sli4_hba
.intr_enable
)
8448 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
8450 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
8451 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
8455 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
8456 mbx_sli4_parameters
= &mqe
->un
.get_sli4_parameters
.sli4_parameters
;
8457 sli4_params
->if_type
= bf_get(cfg_if_type
, mbx_sli4_parameters
);
8458 sli4_params
->sli_rev
= bf_get(cfg_sli_rev
, mbx_sli4_parameters
);
8459 sli4_params
->sli_family
= bf_get(cfg_sli_family
, mbx_sli4_parameters
);
8460 sli4_params
->featurelevel_1
= bf_get(cfg_sli_hint_1
,
8461 mbx_sli4_parameters
);
8462 sli4_params
->featurelevel_2
= bf_get(cfg_sli_hint_2
,
8463 mbx_sli4_parameters
);
8464 if (bf_get(cfg_phwq
, mbx_sli4_parameters
))
8465 phba
->sli3_options
|= LPFC_SLI4_PHWQ_ENABLED
;
8467 phba
->sli3_options
&= ~LPFC_SLI4_PHWQ_ENABLED
;
8468 sli4_params
->sge_supp_len
= mbx_sli4_parameters
->sge_supp_len
;
8469 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, mbx_sli4_parameters
);
8470 sli4_params
->cqv
= bf_get(cfg_cqv
, mbx_sli4_parameters
);
8471 sli4_params
->mqv
= bf_get(cfg_mqv
, mbx_sli4_parameters
);
8472 sli4_params
->wqv
= bf_get(cfg_wqv
, mbx_sli4_parameters
);
8473 sli4_params
->rqv
= bf_get(cfg_rqv
, mbx_sli4_parameters
);
8474 sli4_params
->sgl_pages_max
= bf_get(cfg_sgl_page_cnt
,
8475 mbx_sli4_parameters
);
8476 sli4_params
->sgl_pp_align
= bf_get(cfg_sgl_pp_align
,
8477 mbx_sli4_parameters
);
8478 phba
->sli4_hba
.extents_in_use
= bf_get(cfg_ext
, mbx_sli4_parameters
);
8479 phba
->sli4_hba
.rpi_hdrs_in_use
= bf_get(cfg_hdrr
, mbx_sli4_parameters
);
8481 /* Make sure that sge_supp_len can be handled by the driver */
8482 if (sli4_params
->sge_supp_len
> LPFC_MAX_SGE_SIZE
)
8483 sli4_params
->sge_supp_len
= LPFC_MAX_SGE_SIZE
;
8489 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8490 * @pdev: pointer to PCI device
8491 * @pid: pointer to PCI device identifier
8493 * This routine is to be called to attach a device with SLI-3 interface spec
8494 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8495 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8496 * information of the device and driver to see if the driver state that it can
8497 * support this kind of device. If the match is successful, the driver core
8498 * invokes this routine. If this routine determines it can claim the HBA, it
8499 * does all the initialization that it needs to do to handle the HBA properly.
8502 * 0 - driver can claim the device
8503 * negative value - driver can not claim the device
8505 static int __devinit
8506 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8508 struct lpfc_hba
*phba
;
8509 struct lpfc_vport
*vport
= NULL
;
8510 struct Scsi_Host
*shost
= NULL
;
8512 uint32_t cfg_mode
, intr_mode
;
8514 /* Allocate memory for HBA structure */
8515 phba
= lpfc_hba_alloc(pdev
);
8519 /* Perform generic PCI device enabling operation */
8520 error
= lpfc_enable_pci_dev(phba
);
8524 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8525 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
8527 goto out_disable_pci_dev
;
8529 /* Set up SLI-3 specific device PCI memory space */
8530 error
= lpfc_sli_pci_mem_setup(phba
);
8532 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8533 "1402 Failed to set up pci memory space.\n");
8534 goto out_disable_pci_dev
;
8537 /* Set up phase-1 common device driver resources */
8538 error
= lpfc_setup_driver_resource_phase1(phba
);
8540 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8541 "1403 Failed to set up driver resource.\n");
8542 goto out_unset_pci_mem_s3
;
8545 /* Set up SLI-3 specific device driver resources */
8546 error
= lpfc_sli_driver_resource_setup(phba
);
8548 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8549 "1404 Failed to set up driver resource.\n");
8550 goto out_unset_pci_mem_s3
;
8553 /* Initialize and populate the iocb list per host */
8554 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
8556 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8557 "1405 Failed to initialize iocb list.\n");
8558 goto out_unset_driver_resource_s3
;
8561 /* Set up common device driver resources */
8562 error
= lpfc_setup_driver_resource_phase2(phba
);
8564 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8565 "1406 Failed to set up driver resource.\n");
8566 goto out_free_iocb_list
;
8569 /* Get the default values for Model Name and Description */
8570 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
8572 /* Create SCSI host to the physical port */
8573 error
= lpfc_create_shost(phba
);
8575 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8576 "1407 Failed to create scsi host.\n");
8577 goto out_unset_driver_resource
;
8580 /* Configure sysfs attributes */
8581 vport
= phba
->pport
;
8582 error
= lpfc_alloc_sysfs_attr(vport
);
8584 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8585 "1476 Failed to allocate sysfs attr\n");
8586 goto out_destroy_shost
;
8589 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8590 /* Now, trying to enable interrupt and bring up the device */
8591 cfg_mode
= phba
->cfg_use_msi
;
8593 /* Put device to a known state before enabling interrupt */
8594 lpfc_stop_port(phba
);
8595 /* Configure and enable interrupt */
8596 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
8597 if (intr_mode
== LPFC_INTR_ERROR
) {
8598 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8599 "0431 Failed to enable interrupt.\n");
8601 goto out_free_sysfs_attr
;
8603 /* SLI-3 HBA setup */
8604 if (lpfc_sli_hba_setup(phba
)) {
8605 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8606 "1477 Failed to set up hba\n");
8608 goto out_remove_device
;
8611 /* Wait 50ms for the interrupts of previous mailbox commands */
8613 /* Check active interrupts on message signaled interrupts */
8614 if (intr_mode
== 0 ||
8615 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
8616 /* Log the current active interrupt mode */
8617 phba
->intr_mode
= intr_mode
;
8618 lpfc_log_intr_mode(phba
, intr_mode
);
8621 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8622 "0447 Configure interrupt mode (%d) "
8623 "failed active interrupt test.\n",
8625 /* Disable the current interrupt mode */
8626 lpfc_sli_disable_intr(phba
);
8627 /* Try next level of interrupt mode */
8628 cfg_mode
= --intr_mode
;
8632 /* Perform post initialization setup */
8633 lpfc_post_init_setup(phba
);
8635 /* Check if there are static vports to be created. */
8636 lpfc_create_static_vport(phba
);
8641 lpfc_unset_hba(phba
);
8642 out_free_sysfs_attr
:
8643 lpfc_free_sysfs_attr(vport
);
8645 lpfc_destroy_shost(phba
);
8646 out_unset_driver_resource
:
8647 lpfc_unset_driver_resource_phase2(phba
);
8649 lpfc_free_iocb_list(phba
);
8650 out_unset_driver_resource_s3
:
8651 lpfc_sli_driver_resource_unset(phba
);
8652 out_unset_pci_mem_s3
:
8653 lpfc_sli_pci_mem_unset(phba
);
8654 out_disable_pci_dev
:
8655 lpfc_disable_pci_dev(phba
);
8657 scsi_host_put(shost
);
8659 lpfc_hba_free(phba
);
8664 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8665 * @pdev: pointer to PCI device
8667 * This routine is to be called to disattach a device with SLI-3 interface
8668 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8669 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8670 * device to be removed from the PCI subsystem properly.
8672 static void __devexit
8673 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
8675 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8676 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8677 struct lpfc_vport
**vports
;
8678 struct lpfc_hba
*phba
= vport
->phba
;
8680 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
8682 spin_lock_irq(&phba
->hbalock
);
8683 vport
->load_flag
|= FC_UNLOADING
;
8684 spin_unlock_irq(&phba
->hbalock
);
8686 lpfc_free_sysfs_attr(vport
);
8688 /* Release all the vports against this physical port */
8689 vports
= lpfc_create_vport_work_array(phba
);
8691 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8692 fc_vport_terminate(vports
[i
]->fc_vport
);
8693 lpfc_destroy_vport_work_array(phba
, vports
);
8695 /* Remove FC host and then SCSI host with the physical port */
8696 fc_remove_host(shost
);
8697 scsi_remove_host(shost
);
8698 lpfc_cleanup(vport
);
8701 * Bring down the SLI Layer. This step disable all interrupts,
8702 * clears the rings, discards all mailbox commands, and resets
8706 /* HBA interrupt will be disabled after this call */
8707 lpfc_sli_hba_down(phba
);
8708 /* Stop kthread signal shall trigger work_done one more time */
8709 kthread_stop(phba
->worker_thread
);
8710 /* Final cleanup of txcmplq and reset the HBA */
8711 lpfc_sli_brdrestart(phba
);
8713 lpfc_stop_hba_timers(phba
);
8714 spin_lock_irq(&phba
->hbalock
);
8715 list_del_init(&vport
->listentry
);
8716 spin_unlock_irq(&phba
->hbalock
);
8718 lpfc_debugfs_terminate(vport
);
8720 /* Disable SR-IOV if enabled */
8721 if (phba
->cfg_sriov_nr_virtfn
)
8722 pci_disable_sriov(pdev
);
8724 /* Disable interrupt */
8725 lpfc_sli_disable_intr(phba
);
8727 pci_set_drvdata(pdev
, NULL
);
8728 scsi_host_put(shost
);
8731 * Call scsi_free before mem_free since scsi bufs are released to their
8732 * corresponding pools here.
8734 lpfc_scsi_free(phba
);
8735 lpfc_mem_free_all(phba
);
8737 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
8738 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
8740 /* Free resources associated with SLI2 interface */
8741 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
8742 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
8744 /* unmap adapter SLIM and Control Registers */
8745 iounmap(phba
->ctrl_regs_memmap_p
);
8746 iounmap(phba
->slim_memmap_p
);
8748 lpfc_hba_free(phba
);
8750 pci_release_selected_regions(pdev
, bars
);
8751 pci_disable_device(pdev
);
8755 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8756 * @pdev: pointer to PCI device
8757 * @msg: power management message
8759 * This routine is to be called from the kernel's PCI subsystem to support
8760 * system Power Management (PM) to device with SLI-3 interface spec. When
8761 * PM invokes this method, it quiesces the device by stopping the driver's
8762 * worker thread for the device, turning off device's interrupt and DMA,
8763 * and bring the device offline. Note that as the driver implements the
8764 * minimum PM requirements to a power-aware driver's PM support for the
8765 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8766 * to the suspend() method call will be treated as SUSPEND and the driver will
8767 * fully reinitialize its device during resume() method call, the driver will
8768 * set device to PCI_D3hot state in PCI config space instead of setting it
8769 * according to the @msg provided by the PM.
8772 * 0 - driver suspended the device
8776 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
8778 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8779 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8781 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8782 "0473 PCI device Power Management suspend.\n");
8784 /* Bring down the device */
8785 lpfc_offline_prep(phba
);
8787 kthread_stop(phba
->worker_thread
);
8789 /* Disable interrupt from device */
8790 lpfc_sli_disable_intr(phba
);
8792 /* Save device state to PCI config space */
8793 pci_save_state(pdev
);
8794 pci_set_power_state(pdev
, PCI_D3hot
);
8800 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8801 * @pdev: pointer to PCI device
8803 * This routine is to be called from the kernel's PCI subsystem to support
8804 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8805 * invokes this method, it restores the device's PCI config space state and
8806 * fully reinitializes the device and brings it online. Note that as the
8807 * driver implements the minimum PM requirements to a power-aware driver's
8808 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8809 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8810 * driver will fully reinitialize its device during resume() method call,
8811 * the device will be set to PCI_D0 directly in PCI config space before
8812 * restoring the state.
8815 * 0 - driver suspended the device
8819 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
8821 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8822 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8826 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8827 "0452 PCI device Power Management resume.\n");
8829 /* Restore device state from PCI config space */
8830 pci_set_power_state(pdev
, PCI_D0
);
8831 pci_restore_state(pdev
);
8834 * As the new kernel behavior of pci_restore_state() API call clears
8835 * device saved_state flag, need to save the restored state again.
8837 pci_save_state(pdev
);
8839 if (pdev
->is_busmaster
)
8840 pci_set_master(pdev
);
8842 /* Startup the kernel thread for this host adapter. */
8843 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8844 "lpfc_worker_%d", phba
->brd_no
);
8845 if (IS_ERR(phba
->worker_thread
)) {
8846 error
= PTR_ERR(phba
->worker_thread
);
8847 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8848 "0434 PM resume failed to start worker "
8849 "thread: error=x%x.\n", error
);
8853 /* Configure and enable interrupt */
8854 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
8855 if (intr_mode
== LPFC_INTR_ERROR
) {
8856 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8857 "0430 PM resume Failed to enable interrupt\n");
8860 phba
->intr_mode
= intr_mode
;
8862 /* Restart HBA and bring it online */
8863 lpfc_sli_brdrestart(phba
);
8866 /* Log the current active interrupt mode */
8867 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8873 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8874 * @phba: pointer to lpfc hba data structure.
8876 * This routine is called to prepare the SLI3 device for PCI slot recover. It
8877 * aborts all the outstanding SCSI I/Os to the pci device.
8880 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
8882 struct lpfc_sli
*psli
= &phba
->sli
;
8883 struct lpfc_sli_ring
*pring
;
8885 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8886 "2723 PCI channel I/O abort preparing for recovery\n");
8889 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8890 * and let the SCSI mid-layer to retry them to recover.
8892 pring
= &psli
->ring
[psli
->fcp_ring
];
8893 lpfc_sli_abort_iocb_ring(phba
, pring
);
8897 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8898 * @phba: pointer to lpfc hba data structure.
8900 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8901 * disables the device interrupt and pci device, and aborts the internal FCP
8905 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
8907 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8908 "2710 PCI channel disable preparing for reset\n");
8910 /* Block any management I/Os to the device */
8911 lpfc_block_mgmt_io(phba
);
8913 /* Block all SCSI devices' I/Os on the host */
8914 lpfc_scsi_dev_block(phba
);
8916 /* stop all timers */
8917 lpfc_stop_hba_timers(phba
);
8919 /* Disable interrupt and pci device */
8920 lpfc_sli_disable_intr(phba
);
8921 pci_disable_device(phba
->pcidev
);
8923 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8924 lpfc_sli_flush_fcp_rings(phba
);
8928 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8929 * @phba: pointer to lpfc hba data structure.
8931 * This routine is called to prepare the SLI3 device for PCI slot permanently
8932 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8936 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
8938 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8939 "2711 PCI channel permanent disable for failure\n");
8940 /* Block all SCSI devices' I/Os on the host */
8941 lpfc_scsi_dev_block(phba
);
8943 /* stop all timers */
8944 lpfc_stop_hba_timers(phba
);
8946 /* Clean up all driver's outstanding SCSI I/Os */
8947 lpfc_sli_flush_fcp_rings(phba
);
8951 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8952 * @pdev: pointer to PCI device.
8953 * @state: the current PCI connection state.
8955 * This routine is called from the PCI subsystem for I/O error handling to
8956 * device with SLI-3 interface spec. This function is called by the PCI
8957 * subsystem after a PCI bus error affecting this device has been detected.
8958 * When this function is invoked, it will need to stop all the I/Os and
8959 * interrupt(s) to the device. Once that is done, it will return
8960 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8964 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8965 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8966 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8968 static pci_ers_result_t
8969 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
8971 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8972 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8975 case pci_channel_io_normal
:
8976 /* Non-fatal error, prepare for recovery */
8977 lpfc_sli_prep_dev_for_recover(phba
);
8978 return PCI_ERS_RESULT_CAN_RECOVER
;
8979 case pci_channel_io_frozen
:
8980 /* Fatal error, prepare for slot reset */
8981 lpfc_sli_prep_dev_for_reset(phba
);
8982 return PCI_ERS_RESULT_NEED_RESET
;
8983 case pci_channel_io_perm_failure
:
8984 /* Permanent failure, prepare for device down */
8985 lpfc_sli_prep_dev_for_perm_failure(phba
);
8986 return PCI_ERS_RESULT_DISCONNECT
;
8988 /* Unknown state, prepare and request slot reset */
8989 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8990 "0472 Unknown PCI error state: x%x\n", state
);
8991 lpfc_sli_prep_dev_for_reset(phba
);
8992 return PCI_ERS_RESULT_NEED_RESET
;
8997 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8998 * @pdev: pointer to PCI device.
9000 * This routine is called from the PCI subsystem for error handling to
9001 * device with SLI-3 interface spec. This is called after PCI bus has been
9002 * reset to restart the PCI card from scratch, as if from a cold-boot.
9003 * During the PCI subsystem error recovery, after driver returns
9004 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9005 * recovery and then call this routine before calling the .resume method
9006 * to recover the device. This function will initialize the HBA device,
9007 * enable the interrupt, but it will just put the HBA to offline state
9008 * without passing any I/O traffic.
9011 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9012 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9014 static pci_ers_result_t
9015 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
9017 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9018 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9019 struct lpfc_sli
*psli
= &phba
->sli
;
9022 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
9023 if (pci_enable_device_mem(pdev
)) {
9024 printk(KERN_ERR
"lpfc: Cannot re-enable "
9025 "PCI device after reset.\n");
9026 return PCI_ERS_RESULT_DISCONNECT
;
9029 pci_restore_state(pdev
);
9032 * As the new kernel behavior of pci_restore_state() API call clears
9033 * device saved_state flag, need to save the restored state again.
9035 pci_save_state(pdev
);
9037 if (pdev
->is_busmaster
)
9038 pci_set_master(pdev
);
9040 spin_lock_irq(&phba
->hbalock
);
9041 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
9042 spin_unlock_irq(&phba
->hbalock
);
9044 /* Configure and enable interrupt */
9045 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
9046 if (intr_mode
== LPFC_INTR_ERROR
) {
9047 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9048 "0427 Cannot re-enable interrupt after "
9050 return PCI_ERS_RESULT_DISCONNECT
;
9052 phba
->intr_mode
= intr_mode
;
9054 /* Take device offline, it will perform cleanup */
9055 lpfc_offline_prep(phba
);
9057 lpfc_sli_brdrestart(phba
);
9059 /* Log the current active interrupt mode */
9060 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9062 return PCI_ERS_RESULT_RECOVERED
;
9066 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9067 * @pdev: pointer to PCI device
9069 * This routine is called from the PCI subsystem for error handling to device
9070 * with SLI-3 interface spec. It is called when kernel error recovery tells
9071 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9072 * error recovery. After this call, traffic can start to flow from this device
9076 lpfc_io_resume_s3(struct pci_dev
*pdev
)
9078 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9079 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9081 /* Bring device online, it will be no-op for non-fatal error resume */
9084 /* Clean up Advanced Error Reporting (AER) if needed */
9085 if (phba
->hba_flag
& HBA_AER_ENABLED
)
9086 pci_cleanup_aer_uncorrect_error_status(pdev
);
9090 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9091 * @phba: pointer to lpfc hba data structure.
9093 * returns the number of ELS/CT IOCBs to reserve
9096 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
9098 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
9100 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9103 else if (max_xri
<= 256)
9105 else if (max_xri
<= 512)
9107 else if (max_xri
<= 1024)
9116 * lpfc_write_firmware - attempt to write a firmware image to the port
9117 * @phba: pointer to lpfc hba data structure.
9118 * @fw: pointer to firmware image returned from request_firmware.
9120 * returns the number of bytes written if write is successful.
9121 * returns a negative error value if there were errors.
9122 * returns 0 if firmware matches currently active firmware on port.
9125 lpfc_write_firmware(struct lpfc_hba
*phba
, const struct firmware
*fw
)
9127 char fwrev
[FW_REV_STR_SIZE
];
9128 struct lpfc_grp_hdr
*image
= (struct lpfc_grp_hdr
*)fw
->data
;
9129 struct list_head dma_buffer_list
;
9131 struct lpfc_dmabuf
*dmabuf
, *next
;
9132 uint32_t offset
= 0, temp_offset
= 0;
9134 INIT_LIST_HEAD(&dma_buffer_list
);
9135 if ((be32_to_cpu(image
->magic_number
) != LPFC_GROUP_OJECT_MAGIC_NUM
) ||
9136 (bf_get_be32(lpfc_grp_hdr_file_type
, image
) !=
9137 LPFC_FILE_TYPE_GROUP
) ||
9138 (bf_get_be32(lpfc_grp_hdr_id
, image
) != LPFC_FILE_ID_GROUP
) ||
9139 (be32_to_cpu(image
->size
) != fw
->size
)) {
9140 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9141 "3022 Invalid FW image found. "
9142 "Magic:%x Type:%x ID:%x\n",
9143 be32_to_cpu(image
->magic_number
),
9144 bf_get_be32(lpfc_grp_hdr_file_type
, image
),
9145 bf_get_be32(lpfc_grp_hdr_id
, image
));
9148 lpfc_decode_firmware_rev(phba
, fwrev
, 1);
9149 if (strncmp(fwrev
, image
->revision
, strnlen(image
->revision
, 16))) {
9150 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9151 "3023 Updating Firmware. Current Version:%s "
9153 fwrev
, image
->revision
);
9154 for (i
= 0; i
< LPFC_MBX_WR_CONFIG_MAX_BDE
; i
++) {
9155 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
),
9161 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
9165 if (!dmabuf
->virt
) {
9170 list_add_tail(&dmabuf
->list
, &dma_buffer_list
);
9172 while (offset
< fw
->size
) {
9173 temp_offset
= offset
;
9174 list_for_each_entry(dmabuf
, &dma_buffer_list
, list
) {
9175 if (temp_offset
+ SLI4_PAGE_SIZE
> fw
->size
) {
9176 memcpy(dmabuf
->virt
,
9177 fw
->data
+ temp_offset
,
9178 fw
->size
- temp_offset
);
9179 temp_offset
= fw
->size
;
9182 memcpy(dmabuf
->virt
, fw
->data
+ temp_offset
,
9184 temp_offset
+= SLI4_PAGE_SIZE
;
9186 rc
= lpfc_wr_object(phba
, &dma_buffer_list
,
9187 (fw
->size
- offset
), &offset
);
9189 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9190 "3024 Firmware update failed. "
9198 list_for_each_entry_safe(dmabuf
, next
, &dma_buffer_list
, list
) {
9199 list_del(&dmabuf
->list
);
9200 dma_free_coherent(&phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
9201 dmabuf
->virt
, dmabuf
->phys
);
9208 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9209 * @pdev: pointer to PCI device
9210 * @pid: pointer to PCI device identifier
9212 * This routine is called from the kernel's PCI subsystem to device with
9213 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9214 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9215 * information of the device and driver to see if the driver state that it
9216 * can support this kind of device. If the match is successful, the driver
9217 * core invokes this routine. If this routine determines it can claim the HBA,
9218 * it does all the initialization that it needs to do to handle the HBA
9222 * 0 - driver can claim the device
9223 * negative value - driver can not claim the device
9225 static int __devinit
9226 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
9228 struct lpfc_hba
*phba
;
9229 struct lpfc_vport
*vport
= NULL
;
9230 struct Scsi_Host
*shost
= NULL
;
9232 uint32_t cfg_mode
, intr_mode
;
9234 int adjusted_fcp_eq_count
;
9235 const struct firmware
*fw
;
9236 uint8_t file_name
[16];
9238 /* Allocate memory for HBA structure */
9239 phba
= lpfc_hba_alloc(pdev
);
9243 /* Perform generic PCI device enabling operation */
9244 error
= lpfc_enable_pci_dev(phba
);
9248 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9249 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
9251 goto out_disable_pci_dev
;
9253 /* Set up SLI-4 specific device PCI memory space */
9254 error
= lpfc_sli4_pci_mem_setup(phba
);
9256 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9257 "1410 Failed to set up pci memory space.\n");
9258 goto out_disable_pci_dev
;
9261 /* Set up phase-1 common device driver resources */
9262 error
= lpfc_setup_driver_resource_phase1(phba
);
9264 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9265 "1411 Failed to set up driver resource.\n");
9266 goto out_unset_pci_mem_s4
;
9269 /* Set up SLI-4 Specific device driver resources */
9270 error
= lpfc_sli4_driver_resource_setup(phba
);
9272 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9273 "1412 Failed to set up driver resource.\n");
9274 goto out_unset_pci_mem_s4
;
9277 /* Initialize and populate the iocb list per host */
9279 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9280 "2821 initialize iocb list %d.\n",
9281 phba
->cfg_iocb_cnt
*1024);
9282 error
= lpfc_init_iocb_list(phba
, phba
->cfg_iocb_cnt
*1024);
9285 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9286 "1413 Failed to initialize iocb list.\n");
9287 goto out_unset_driver_resource_s4
;
9290 INIT_LIST_HEAD(&phba
->active_rrq_list
);
9291 INIT_LIST_HEAD(&phba
->fcf
.fcf_pri_list
);
9293 /* Set up common device driver resources */
9294 error
= lpfc_setup_driver_resource_phase2(phba
);
9296 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9297 "1414 Failed to set up driver resource.\n");
9298 goto out_free_iocb_list
;
9301 /* Get the default values for Model Name and Description */
9302 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
9304 /* Create SCSI host to the physical port */
9305 error
= lpfc_create_shost(phba
);
9307 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9308 "1415 Failed to create scsi host.\n");
9309 goto out_unset_driver_resource
;
9312 /* Configure sysfs attributes */
9313 vport
= phba
->pport
;
9314 error
= lpfc_alloc_sysfs_attr(vport
);
9316 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9317 "1416 Failed to allocate sysfs attr\n");
9318 goto out_destroy_shost
;
9321 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
9322 /* Now, trying to enable interrupt and bring up the device */
9323 cfg_mode
= phba
->cfg_use_msi
;
9325 /* Put device to a known state before enabling interrupt */
9326 lpfc_stop_port(phba
);
9327 /* Configure and enable interrupt */
9328 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
9329 if (intr_mode
== LPFC_INTR_ERROR
) {
9330 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9331 "0426 Failed to enable interrupt.\n");
9333 goto out_free_sysfs_attr
;
9335 /* Default to single EQ for non-MSI-X */
9336 if (phba
->intr_type
!= MSIX
)
9337 adjusted_fcp_eq_count
= 0;
9338 else if (phba
->sli4_hba
.msix_vec_nr
<
9339 phba
->cfg_fcp_eq_count
+ 1)
9340 adjusted_fcp_eq_count
= phba
->sli4_hba
.msix_vec_nr
- 1;
9342 adjusted_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
9343 phba
->cfg_fcp_eq_count
= adjusted_fcp_eq_count
;
9344 /* Set up SLI-4 HBA */
9345 if (lpfc_sli4_hba_setup(phba
)) {
9346 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9347 "1421 Failed to set up hba\n");
9349 goto out_disable_intr
;
9352 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9354 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
9357 /* Check active interrupts received only for MSI/MSI-X */
9358 if (intr_mode
== 0 ||
9359 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
9360 /* Log the current active interrupt mode */
9361 phba
->intr_mode
= intr_mode
;
9362 lpfc_log_intr_mode(phba
, intr_mode
);
9365 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9366 "0451 Configure interrupt mode (%d) "
9367 "failed active interrupt test.\n",
9369 /* Unset the previous SLI-4 HBA setup. */
9371 * TODO: Is this operation compatible with IF TYPE 2
9372 * devices? All port state is deleted and cleared.
9374 lpfc_sli4_unset_hba(phba
);
9375 /* Try next level of interrupt mode */
9376 cfg_mode
= --intr_mode
;
9379 /* Perform post initialization setup */
9380 lpfc_post_init_setup(phba
);
9382 /* check for firmware upgrade or downgrade (if_type 2 only) */
9383 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
9384 LPFC_SLI_INTF_IF_TYPE_2
) {
9385 snprintf(file_name
, 16, "%s.grp", phba
->ModelName
);
9386 error
= request_firmware(&fw
, file_name
, &phba
->pcidev
->dev
);
9388 lpfc_write_firmware(phba
, fw
);
9389 release_firmware(fw
);
9393 /* Check if there are static vports to be created. */
9394 lpfc_create_static_vport(phba
);
9398 lpfc_sli4_disable_intr(phba
);
9399 out_free_sysfs_attr
:
9400 lpfc_free_sysfs_attr(vport
);
9402 lpfc_destroy_shost(phba
);
9403 out_unset_driver_resource
:
9404 lpfc_unset_driver_resource_phase2(phba
);
9406 lpfc_free_iocb_list(phba
);
9407 out_unset_driver_resource_s4
:
9408 lpfc_sli4_driver_resource_unset(phba
);
9409 out_unset_pci_mem_s4
:
9410 lpfc_sli4_pci_mem_unset(phba
);
9411 out_disable_pci_dev
:
9412 lpfc_disable_pci_dev(phba
);
9414 scsi_host_put(shost
);
9416 lpfc_hba_free(phba
);
9421 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9422 * @pdev: pointer to PCI device
9424 * This routine is called from the kernel's PCI subsystem to device with
9425 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9426 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9427 * device to be removed from the PCI subsystem properly.
9429 static void __devexit
9430 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
9432 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9433 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
9434 struct lpfc_vport
**vports
;
9435 struct lpfc_hba
*phba
= vport
->phba
;
9438 /* Mark the device unloading flag */
9439 spin_lock_irq(&phba
->hbalock
);
9440 vport
->load_flag
|= FC_UNLOADING
;
9441 spin_unlock_irq(&phba
->hbalock
);
9443 /* Free the HBA sysfs attributes */
9444 lpfc_free_sysfs_attr(vport
);
9446 /* Release all the vports against this physical port */
9447 vports
= lpfc_create_vport_work_array(phba
);
9449 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
9450 fc_vport_terminate(vports
[i
]->fc_vport
);
9451 lpfc_destroy_vport_work_array(phba
, vports
);
9453 /* Remove FC host and then SCSI host with the physical port */
9454 fc_remove_host(shost
);
9455 scsi_remove_host(shost
);
9457 /* Perform cleanup on the physical port */
9458 lpfc_cleanup(vport
);
9461 * Bring down the SLI Layer. This step disables all interrupts,
9462 * clears the rings, discards all mailbox commands, and resets
9463 * the HBA FCoE function.
9465 lpfc_debugfs_terminate(vport
);
9466 lpfc_sli4_hba_unset(phba
);
9468 spin_lock_irq(&phba
->hbalock
);
9469 list_del_init(&vport
->listentry
);
9470 spin_unlock_irq(&phba
->hbalock
);
9472 /* Perform scsi free before driver resource_unset since scsi
9473 * buffers are released to their corresponding pools here.
9475 lpfc_scsi_free(phba
);
9476 lpfc_sli4_driver_resource_unset(phba
);
9478 /* Unmap adapter Control and Doorbell registers */
9479 lpfc_sli4_pci_mem_unset(phba
);
9481 /* Release PCI resources and disable device's PCI function */
9482 scsi_host_put(shost
);
9483 lpfc_disable_pci_dev(phba
);
9485 /* Finally, free the driver's device data structure */
9486 lpfc_hba_free(phba
);
9492 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9493 * @pdev: pointer to PCI device
9494 * @msg: power management message
9496 * This routine is called from the kernel's PCI subsystem to support system
9497 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9498 * this method, it quiesces the device by stopping the driver's worker
9499 * thread for the device, turning off device's interrupt and DMA, and bring
9500 * the device offline. Note that as the driver implements the minimum PM
9501 * requirements to a power-aware driver's PM support for suspend/resume -- all
9502 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9503 * method call will be treated as SUSPEND and the driver will fully
9504 * reinitialize its device during resume() method call, the driver will set
9505 * device to PCI_D3hot state in PCI config space instead of setting it
9506 * according to the @msg provided by the PM.
9509 * 0 - driver suspended the device
9513 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
9515 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9516 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9518 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9519 "2843 PCI device Power Management suspend.\n");
9521 /* Bring down the device */
9522 lpfc_offline_prep(phba
);
9524 kthread_stop(phba
->worker_thread
);
9526 /* Disable interrupt from device */
9527 lpfc_sli4_disable_intr(phba
);
9528 lpfc_sli4_queue_destroy(phba
);
9530 /* Save device state to PCI config space */
9531 pci_save_state(pdev
);
9532 pci_set_power_state(pdev
, PCI_D3hot
);
9538 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9539 * @pdev: pointer to PCI device
9541 * This routine is called from the kernel's PCI subsystem to support system
9542 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9543 * this method, it restores the device's PCI config space state and fully
9544 * reinitializes the device and brings it online. Note that as the driver
9545 * implements the minimum PM requirements to a power-aware driver's PM for
9546 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9547 * to the suspend() method call will be treated as SUSPEND and the driver
9548 * will fully reinitialize its device during resume() method call, the device
9549 * will be set to PCI_D0 directly in PCI config space before restoring the
9553 * 0 - driver suspended the device
9557 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
9559 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9560 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9564 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9565 "0292 PCI device Power Management resume.\n");
9567 /* Restore device state from PCI config space */
9568 pci_set_power_state(pdev
, PCI_D0
);
9569 pci_restore_state(pdev
);
9572 * As the new kernel behavior of pci_restore_state() API call clears
9573 * device saved_state flag, need to save the restored state again.
9575 pci_save_state(pdev
);
9577 if (pdev
->is_busmaster
)
9578 pci_set_master(pdev
);
9580 /* Startup the kernel thread for this host adapter. */
9581 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
9582 "lpfc_worker_%d", phba
->brd_no
);
9583 if (IS_ERR(phba
->worker_thread
)) {
9584 error
= PTR_ERR(phba
->worker_thread
);
9585 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9586 "0293 PM resume failed to start worker "
9587 "thread: error=x%x.\n", error
);
9591 /* Configure and enable interrupt */
9592 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
9593 if (intr_mode
== LPFC_INTR_ERROR
) {
9594 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9595 "0294 PM resume Failed to enable interrupt\n");
9598 phba
->intr_mode
= intr_mode
;
9600 /* Restart HBA and bring it online */
9601 lpfc_sli_brdrestart(phba
);
9604 /* Log the current active interrupt mode */
9605 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9611 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9612 * @phba: pointer to lpfc hba data structure.
9614 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9615 * aborts all the outstanding SCSI I/Os to the pci device.
9618 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba
*phba
)
9620 struct lpfc_sli
*psli
= &phba
->sli
;
9621 struct lpfc_sli_ring
*pring
;
9623 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9624 "2828 PCI channel I/O abort preparing for recovery\n");
9626 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9627 * and let the SCSI mid-layer to retry them to recover.
9629 pring
= &psli
->ring
[psli
->fcp_ring
];
9630 lpfc_sli_abort_iocb_ring(phba
, pring
);
9634 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9635 * @phba: pointer to lpfc hba data structure.
9637 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9638 * disables the device interrupt and pci device, and aborts the internal FCP
9642 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba
*phba
)
9644 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9645 "2826 PCI channel disable preparing for reset\n");
9647 /* Block any management I/Os to the device */
9648 lpfc_block_mgmt_io(phba
);
9650 /* Block all SCSI devices' I/Os on the host */
9651 lpfc_scsi_dev_block(phba
);
9653 /* stop all timers */
9654 lpfc_stop_hba_timers(phba
);
9656 /* Disable interrupt and pci device */
9657 lpfc_sli4_disable_intr(phba
);
9658 lpfc_sli4_queue_destroy(phba
);
9659 pci_disable_device(phba
->pcidev
);
9661 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9662 lpfc_sli_flush_fcp_rings(phba
);
9666 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9667 * @phba: pointer to lpfc hba data structure.
9669 * This routine is called to prepare the SLI4 device for PCI slot permanently
9670 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9674 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
9676 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9677 "2827 PCI channel permanent disable for failure\n");
9679 /* Block all SCSI devices' I/Os on the host */
9680 lpfc_scsi_dev_block(phba
);
9682 /* stop all timers */
9683 lpfc_stop_hba_timers(phba
);
9685 /* Clean up all driver's outstanding SCSI I/Os */
9686 lpfc_sli_flush_fcp_rings(phba
);
9690 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9691 * @pdev: pointer to PCI device.
9692 * @state: the current PCI connection state.
9694 * This routine is called from the PCI subsystem for error handling to device
9695 * with SLI-4 interface spec. This function is called by the PCI subsystem
9696 * after a PCI bus error affecting this device has been detected. When this
9697 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9698 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9699 * for the PCI subsystem to perform proper recovery as desired.
9702 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9703 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9705 static pci_ers_result_t
9706 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
9708 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9709 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9712 case pci_channel_io_normal
:
9713 /* Non-fatal error, prepare for recovery */
9714 lpfc_sli4_prep_dev_for_recover(phba
);
9715 return PCI_ERS_RESULT_CAN_RECOVER
;
9716 case pci_channel_io_frozen
:
9717 /* Fatal error, prepare for slot reset */
9718 lpfc_sli4_prep_dev_for_reset(phba
);
9719 return PCI_ERS_RESULT_NEED_RESET
;
9720 case pci_channel_io_perm_failure
:
9721 /* Permanent failure, prepare for device down */
9722 lpfc_sli4_prep_dev_for_perm_failure(phba
);
9723 return PCI_ERS_RESULT_DISCONNECT
;
9725 /* Unknown state, prepare and request slot reset */
9726 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9727 "2825 Unknown PCI error state: x%x\n", state
);
9728 lpfc_sli4_prep_dev_for_reset(phba
);
9729 return PCI_ERS_RESULT_NEED_RESET
;
9734 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9735 * @pdev: pointer to PCI device.
9737 * This routine is called from the PCI subsystem for error handling to device
9738 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9739 * restart the PCI card from scratch, as if from a cold-boot. During the
9740 * PCI subsystem error recovery, after the driver returns
9741 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9742 * recovery and then call this routine before calling the .resume method to
9743 * recover the device. This function will initialize the HBA device, enable
9744 * the interrupt, but it will just put the HBA to offline state without
9745 * passing any I/O traffic.
9748 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9749 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9751 static pci_ers_result_t
9752 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
9754 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9755 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9756 struct lpfc_sli
*psli
= &phba
->sli
;
9759 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
9760 if (pci_enable_device_mem(pdev
)) {
9761 printk(KERN_ERR
"lpfc: Cannot re-enable "
9762 "PCI device after reset.\n");
9763 return PCI_ERS_RESULT_DISCONNECT
;
9766 pci_restore_state(pdev
);
9769 * As the new kernel behavior of pci_restore_state() API call clears
9770 * device saved_state flag, need to save the restored state again.
9772 pci_save_state(pdev
);
9774 if (pdev
->is_busmaster
)
9775 pci_set_master(pdev
);
9777 spin_lock_irq(&phba
->hbalock
);
9778 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
9779 spin_unlock_irq(&phba
->hbalock
);
9781 /* Configure and enable interrupt */
9782 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
9783 if (intr_mode
== LPFC_INTR_ERROR
) {
9784 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9785 "2824 Cannot re-enable interrupt after "
9787 return PCI_ERS_RESULT_DISCONNECT
;
9789 phba
->intr_mode
= intr_mode
;
9791 /* Log the current active interrupt mode */
9792 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9794 return PCI_ERS_RESULT_RECOVERED
;
9798 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9799 * @pdev: pointer to PCI device
9801 * This routine is called from the PCI subsystem for error handling to device
9802 * with SLI-4 interface spec. It is called when kernel error recovery tells
9803 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9804 * error recovery. After this call, traffic can start to flow from this device
9808 lpfc_io_resume_s4(struct pci_dev
*pdev
)
9810 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9811 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9814 * In case of slot reset, as function reset is performed through
9815 * mailbox command which needs DMA to be enabled, this operation
9816 * has to be moved to the io resume phase. Taking device offline
9817 * will perform the necessary cleanup.
9819 if (!(phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)) {
9820 /* Perform device reset */
9821 lpfc_offline_prep(phba
);
9823 lpfc_sli_brdrestart(phba
);
9824 /* Bring the device back online */
9828 /* Clean up Advanced Error Reporting (AER) if needed */
9829 if (phba
->hba_flag
& HBA_AER_ENABLED
)
9830 pci_cleanup_aer_uncorrect_error_status(pdev
);
9834 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9835 * @pdev: pointer to PCI device
9836 * @pid: pointer to PCI device identifier
9838 * This routine is to be registered to the kernel's PCI subsystem. When an
9839 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9840 * at PCI device-specific information of the device and driver to see if the
9841 * driver state that it can support this kind of device. If the match is
9842 * successful, the driver core invokes this routine. This routine dispatches
9843 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9844 * do all the initialization that it needs to do to handle the HBA device
9848 * 0 - driver can claim the device
9849 * negative value - driver can not claim the device
9851 static int __devinit
9852 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
9855 struct lpfc_sli_intf intf
;
9857 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
9860 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
9861 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
9862 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
9864 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
9870 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9871 * @pdev: pointer to PCI device
9873 * This routine is to be registered to the kernel's PCI subsystem. When an
9874 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9875 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9876 * remove routine, which will perform all the necessary cleanup for the
9877 * device to be removed from the PCI subsystem properly.
9879 static void __devexit
9880 lpfc_pci_remove_one(struct pci_dev
*pdev
)
9882 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9883 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9885 switch (phba
->pci_dev_grp
) {
9886 case LPFC_PCI_DEV_LP
:
9887 lpfc_pci_remove_one_s3(pdev
);
9889 case LPFC_PCI_DEV_OC
:
9890 lpfc_pci_remove_one_s4(pdev
);
9893 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9894 "1424 Invalid PCI device group: 0x%x\n",
9902 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9903 * @pdev: pointer to PCI device
9904 * @msg: power management message
9906 * This routine is to be registered to the kernel's PCI subsystem to support
9907 * system Power Management (PM). When PM invokes this method, it dispatches
9908 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9909 * suspend the device.
9912 * 0 - driver suspended the device
9916 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
9918 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9919 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9922 switch (phba
->pci_dev_grp
) {
9923 case LPFC_PCI_DEV_LP
:
9924 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
9926 case LPFC_PCI_DEV_OC
:
9927 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
9930 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9931 "1425 Invalid PCI device group: 0x%x\n",
9939 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9940 * @pdev: pointer to PCI device
9942 * This routine is to be registered to the kernel's PCI subsystem to support
9943 * system Power Management (PM). When PM invokes this method, it dispatches
9944 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9945 * resume the device.
9948 * 0 - driver suspended the device
9952 lpfc_pci_resume_one(struct pci_dev
*pdev
)
9954 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9955 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9958 switch (phba
->pci_dev_grp
) {
9959 case LPFC_PCI_DEV_LP
:
9960 rc
= lpfc_pci_resume_one_s3(pdev
);
9962 case LPFC_PCI_DEV_OC
:
9963 rc
= lpfc_pci_resume_one_s4(pdev
);
9966 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9967 "1426 Invalid PCI device group: 0x%x\n",
9975 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9976 * @pdev: pointer to PCI device.
9977 * @state: the current PCI connection state.
9979 * This routine is registered to the PCI subsystem for error handling. This
9980 * function is called by the PCI subsystem after a PCI bus error affecting
9981 * this device has been detected. When this routine is invoked, it dispatches
9982 * the action to the proper SLI-3 or SLI-4 device error detected handling
9983 * routine, which will perform the proper error detected operation.
9986 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9987 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9989 static pci_ers_result_t
9990 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
9992 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9993 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9994 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
9996 switch (phba
->pci_dev_grp
) {
9997 case LPFC_PCI_DEV_LP
:
9998 rc
= lpfc_io_error_detected_s3(pdev
, state
);
10000 case LPFC_PCI_DEV_OC
:
10001 rc
= lpfc_io_error_detected_s4(pdev
, state
);
10004 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10005 "1427 Invalid PCI device group: 0x%x\n",
10006 phba
->pci_dev_grp
);
10013 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10014 * @pdev: pointer to PCI device.
10016 * This routine is registered to the PCI subsystem for error handling. This
10017 * function is called after PCI bus has been reset to restart the PCI card
10018 * from scratch, as if from a cold-boot. When this routine is invoked, it
10019 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10020 * routine, which will perform the proper device reset.
10023 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10024 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10026 static pci_ers_result_t
10027 lpfc_io_slot_reset(struct pci_dev
*pdev
)
10029 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10030 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10031 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
10033 switch (phba
->pci_dev_grp
) {
10034 case LPFC_PCI_DEV_LP
:
10035 rc
= lpfc_io_slot_reset_s3(pdev
);
10037 case LPFC_PCI_DEV_OC
:
10038 rc
= lpfc_io_slot_reset_s4(pdev
);
10041 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10042 "1428 Invalid PCI device group: 0x%x\n",
10043 phba
->pci_dev_grp
);
10050 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10051 * @pdev: pointer to PCI device
10053 * This routine is registered to the PCI subsystem for error handling. It
10054 * is called when kernel error recovery tells the lpfc driver that it is
10055 * OK to resume normal PCI operation after PCI bus error recovery. When
10056 * this routine is invoked, it dispatches the action to the proper SLI-3
10057 * or SLI-4 device io_resume routine, which will resume the device operation.
10060 lpfc_io_resume(struct pci_dev
*pdev
)
10062 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10063 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10065 switch (phba
->pci_dev_grp
) {
10066 case LPFC_PCI_DEV_LP
:
10067 lpfc_io_resume_s3(pdev
);
10069 case LPFC_PCI_DEV_OC
:
10070 lpfc_io_resume_s4(pdev
);
10073 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10074 "1429 Invalid PCI device group: 0x%x\n",
10075 phba
->pci_dev_grp
);
10082 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10083 * @inode: pointer to the inode representing the lpfcmgmt device
10084 * @filep: pointer to the file representing the open lpfcmgmt device
10086 * This routine puts a reference count on the lpfc module whenever the
10087 * character device is opened
10090 lpfc_mgmt_open(struct inode
*inode
, struct file
*filep
)
10092 try_module_get(THIS_MODULE
);
10097 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10098 * @inode: pointer to the inode representing the lpfcmgmt device
10099 * @filep: pointer to the file representing the open lpfcmgmt device
10101 * This routine removes a reference count from the lpfc module when the
10102 * character device is closed
10105 lpfc_mgmt_release(struct inode
*inode
, struct file
*filep
)
10107 module_put(THIS_MODULE
);
10111 static struct pci_device_id lpfc_id_table
[] = {
10112 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
10113 PCI_ANY_ID
, PCI_ANY_ID
, },
10114 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
10115 PCI_ANY_ID
, PCI_ANY_ID
, },
10116 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
10117 PCI_ANY_ID
, PCI_ANY_ID
, },
10118 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
10119 PCI_ANY_ID
, PCI_ANY_ID
, },
10120 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
10121 PCI_ANY_ID
, PCI_ANY_ID
, },
10122 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
10123 PCI_ANY_ID
, PCI_ANY_ID
, },
10124 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
10125 PCI_ANY_ID
, PCI_ANY_ID
, },
10126 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
10127 PCI_ANY_ID
, PCI_ANY_ID
, },
10128 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
10129 PCI_ANY_ID
, PCI_ANY_ID
, },
10130 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
10131 PCI_ANY_ID
, PCI_ANY_ID
, },
10132 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
10133 PCI_ANY_ID
, PCI_ANY_ID
, },
10134 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
10135 PCI_ANY_ID
, PCI_ANY_ID
, },
10136 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
10137 PCI_ANY_ID
, PCI_ANY_ID
, },
10138 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
10139 PCI_ANY_ID
, PCI_ANY_ID
, },
10140 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
10141 PCI_ANY_ID
, PCI_ANY_ID
, },
10142 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
10143 PCI_ANY_ID
, PCI_ANY_ID
, },
10144 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
10145 PCI_ANY_ID
, PCI_ANY_ID
, },
10146 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
10147 PCI_ANY_ID
, PCI_ANY_ID
, },
10148 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
10149 PCI_ANY_ID
, PCI_ANY_ID
, },
10150 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
10151 PCI_ANY_ID
, PCI_ANY_ID
, },
10152 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
10153 PCI_ANY_ID
, PCI_ANY_ID
, },
10154 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
10155 PCI_ANY_ID
, PCI_ANY_ID
, },
10156 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
10157 PCI_ANY_ID
, PCI_ANY_ID
, },
10158 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
10159 PCI_ANY_ID
, PCI_ANY_ID
, },
10160 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
10161 PCI_ANY_ID
, PCI_ANY_ID
, },
10162 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
10163 PCI_ANY_ID
, PCI_ANY_ID
, },
10164 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
10165 PCI_ANY_ID
, PCI_ANY_ID
, },
10166 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
10167 PCI_ANY_ID
, PCI_ANY_ID
, },
10168 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
10169 PCI_ANY_ID
, PCI_ANY_ID
, },
10170 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
10171 PCI_ANY_ID
, PCI_ANY_ID
, },
10172 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
10173 PCI_ANY_ID
, PCI_ANY_ID
, },
10174 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
10175 PCI_ANY_ID
, PCI_ANY_ID
, },
10176 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
10177 PCI_ANY_ID
, PCI_ANY_ID
, },
10178 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
10179 PCI_ANY_ID
, PCI_ANY_ID
, },
10180 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
10181 PCI_ANY_ID
, PCI_ANY_ID
, },
10182 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
10183 PCI_ANY_ID
, PCI_ANY_ID
, },
10184 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
10185 PCI_ANY_ID
, PCI_ANY_ID
, },
10186 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
10187 PCI_ANY_ID
, PCI_ANY_ID
, },
10188 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
10189 PCI_ANY_ID
, PCI_ANY_ID
, },
10190 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
10191 PCI_ANY_ID
, PCI_ANY_ID
, },
10192 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BALIUS
,
10193 PCI_ANY_ID
, PCI_ANY_ID
, },
10194 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FC
,
10195 PCI_ANY_ID
, PCI_ANY_ID
, },
10196 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FCOE
,
10197 PCI_ANY_ID
, PCI_ANY_ID
, },
10198 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FC_VF
,
10199 PCI_ANY_ID
, PCI_ANY_ID
, },
10200 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FCOE_VF
,
10201 PCI_ANY_ID
, PCI_ANY_ID
, },
10205 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
10207 static struct pci_error_handlers lpfc_err_handler
= {
10208 .error_detected
= lpfc_io_error_detected
,
10209 .slot_reset
= lpfc_io_slot_reset
,
10210 .resume
= lpfc_io_resume
,
10213 static struct pci_driver lpfc_driver
= {
10214 .name
= LPFC_DRIVER_NAME
,
10215 .id_table
= lpfc_id_table
,
10216 .probe
= lpfc_pci_probe_one
,
10217 .remove
= __devexit_p(lpfc_pci_remove_one
),
10218 .suspend
= lpfc_pci_suspend_one
,
10219 .resume
= lpfc_pci_resume_one
,
10220 .err_handler
= &lpfc_err_handler
,
10223 static const struct file_operations lpfc_mgmt_fop
= {
10224 .open
= lpfc_mgmt_open
,
10225 .release
= lpfc_mgmt_release
,
10228 static struct miscdevice lpfc_mgmt_dev
= {
10229 .minor
= MISC_DYNAMIC_MINOR
,
10230 .name
= "lpfcmgmt",
10231 .fops
= &lpfc_mgmt_fop
,
10235 * lpfc_init - lpfc module initialization routine
10237 * This routine is to be invoked when the lpfc module is loaded into the
10238 * kernel. The special kernel macro module_init() is used to indicate the
10239 * role of this routine to the kernel as lpfc module entry point.
10243 * -ENOMEM - FC attach transport failed
10244 * all others - failed
10251 printk(LPFC_MODULE_DESC
"\n");
10252 printk(LPFC_COPYRIGHT
"\n");
10254 error
= misc_register(&lpfc_mgmt_dev
);
10256 printk(KERN_ERR
"Could not register lpfcmgmt device, "
10257 "misc_register returned with status %d", error
);
10259 if (lpfc_enable_npiv
) {
10260 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
10261 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
10263 lpfc_transport_template
=
10264 fc_attach_transport(&lpfc_transport_functions
);
10265 if (lpfc_transport_template
== NULL
)
10267 if (lpfc_enable_npiv
) {
10268 lpfc_vport_transport_template
=
10269 fc_attach_transport(&lpfc_vport_transport_functions
);
10270 if (lpfc_vport_transport_template
== NULL
) {
10271 fc_release_transport(lpfc_transport_template
);
10275 error
= pci_register_driver(&lpfc_driver
);
10277 fc_release_transport(lpfc_transport_template
);
10278 if (lpfc_enable_npiv
)
10279 fc_release_transport(lpfc_vport_transport_template
);
10286 * lpfc_exit - lpfc module removal routine
10288 * This routine is invoked when the lpfc module is removed from the kernel.
10289 * The special kernel macro module_exit() is used to indicate the role of
10290 * this routine to the kernel as lpfc module exit point.
10295 misc_deregister(&lpfc_mgmt_dev
);
10296 pci_unregister_driver(&lpfc_driver
);
10297 fc_release_transport(lpfc_transport_template
);
10298 if (lpfc_enable_npiv
)
10299 fc_release_transport(lpfc_vport_transport_template
);
10300 if (_dump_buf_data
) {
10301 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
10302 "_dump_buf_data at 0x%p\n",
10303 (1L << _dump_buf_data_order
), _dump_buf_data
);
10304 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
10307 if (_dump_buf_dif
) {
10308 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
10309 "_dump_buf_dif at 0x%p\n",
10310 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
10311 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
10315 module_init(lpfc_init
);
10316 module_exit(lpfc_exit
);
10317 MODULE_LICENSE("GPL");
10318 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
10319 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10320 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);